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National Science Day 2022: Speech and essay ideas to mark the discovery of the Raman effect by Sir C. V. Raman

National Science Day is celebrated annually in India on this day to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928. This year, the theme of National Science Day is Integrated Approach in S&T for Sustainable Future.

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National Science Day 2022: Speech and essay ideas to mark the discovery of the Raman effect by Sir C. V. Raman

National Science Day is celebrated annually in India on this day to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928. For his discovery, Sir C.V. Raman was awarded the Nobel Prize in Physics in 1930. It is celebrated to spread a message about the relevance of science in everyday living. It is observed by discussing various concerns and implementing new technology for scientific advancement.

This year, the theme of National Science Day is Integrated Approach in S&T for Sustainable Future.

On National Science Day, here are easy speech and essay ideas for students.

  1. Good Morning,

Honourable guests and my dear friends, I am extremely honoured to speak before this honourable gathering about the ‘National Science Day’.

Every year on February 28 we celebrate this day to mark the invention of the ‘Raman Effect’. However, do you know what it is and why the government have dedicated a day? Raman Effect also known as Raman scattering was an important discovery in the field of scattering of light. The discovery states that when the light traverses through a transparent object some of it gets dispersed and the dispersed light changes its wavelength and amplitude, though slightly. He was also awarded Nobel Prize in 1930 in Physics for this important discovery.

National Science Day promotes science and technology and its feasibility in our daily life. It also encourages scientists, writers, students, and others who are involved in the promotion of science and technology. The day must be observed with the same diligence every year. It should not be limited only to the science fraternity but also must have participants from various walks of life.


2. India celebrates National Science Day on 28th February to commemorate the discovery of the ‘Raman Effect’ by a great Indian scientist Dr. Chandrasekhar Venkata Raman or C.V. Raman. He had invented the Raman Effect on 28th February 1928.

Raman Effect was an important discovery in the field of scattering of light. The discovery states that when the light traverses through a transparent object some of it gets dispersed and the dispersed light changes its wavelength and amplitude, though slightly. The discovery was made by Sir C.V. Raman on 26th February 1928. He was also awarded the 1930 Nobel Prize in Physics for this important discovery. It is to commemorate Sir C.V. Raman and his discovery, the ‘Raman Effect’ that we celebrate National Science Day.

The first National Science Day was celebrated in 1987. Nearly six decades after Sir C.V. Raman made the important discovery, the National Council for Science and Technology Communication (NCSTC), requested the government in 1986, to designate February 28th as the National Science Day. Hence, beginning from 1987, National Science Day is observed every year in Indian schools, colleges, universities, and other relevant places.

One of the main events of the day includes ‘National Science Popularization Awards’ handed over to the people and also institutions for outstanding contribution in the field of science or for the popularization of science and communication. Several activities like debates, talk shows, science exhibitions, etc. are held to celebrate National Science Day.


3. It is a great pleasure to talk on this day – the National Science Day.

National Science Day is celebrated in India every year on the 28th of February. But why do we celebrate this day? What is the aim of it? This day commemorates the invention of the Raman Effect by the great Indian physicist, Sir Chandrasekhara Venkata Raman. It was on this same day that Sir Raman made to the world his greatest invention, the Raman Effect, in the year 1928. He was awarded and honored in the year 1930 with the Nobel Prize in Physics for his great success in the field of science in India.

On this day, we show our dignity and respect to the famous Indian physicist to mark his discovery of the Raman Effect. CV Raman was born on the 7th of November 1888 at Tiruchirappalli, Tamil Nadu. His father was a lecturer in Physics and Maths. Raman was the first person to research such an invention in India. He worked from 1907 to 1933 in Kolkata at the Indian Association for the Cultivation of Science, doing research on so many topics in Physics, of which the Raman Effect became his great success. His discovery marked a notable achievement in Indian history.

So, what is Raman Effect? It is the effect of the scattering of light when passing through different materials.

The day is celebrated as a science carnival, recognizing the scientific activities and programs in the country through the participation of students from schools and colleges, along with scientists from the state and national faculties. These events organized during this National Science Day celebration provides a platform for various newcomers/scientists to start their career in the field of science.

The main objectives of celebrating this National Science Day is to bring awareness to people about the importance of scientific applications in their daily life and to encourage them by popularizing Science and Technology. It allows the scientists and experts from the field to discuss issues and new technologies trending in the field. Also, the celebration is aimed at giving an opportunity for a younger generation to display their activities, efforts, and achievements in the field of science for human welfare.

Read Also: National Science Day 2022: Theme, history, significance, here’s all you need to know

As students, it is our responsibility of every student to honor the great man and his invention, by contributing greatly to the field of science through innovation.

All the very best to enhance your scientific zeal.

India News

GRAP stage-III measures enforced across Delhi as air quality worsens

Delhi’s air quality has deteriorated further, prompting authorities to enforce GRAP stage-III measures across the NCR amid rising AQI levels.

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Delhi’s air quality has continued to deteriorate, prompting authorities to enforce Stage-III measures under the Graded Response Action Plan (GRAP) across the National Capital Region with immediate effect.

The Commission for Air Quality Management (CAQM) said the Air Quality Index (AQI) of the national capital showed a worsening trend over the past 24 hours. The AQI stood at 343 on January 15 at 4 pm and rose further to 354 by 4 pm on Thursday, raising concerns that pollution levels could soon enter the ‘Severe’ category.

Weather agencies have forecast unfavourable atmospheric conditions in the coming days, including low wind speeds, a stable atmosphere and poor dispersion of pollutants. Officials said these conditions could push Delhi’s average AQI beyond 400, which falls under the ‘Severe’ air quality bracket.

Stage-III restrictions come into force across NCR

In view of the rising pollution levels and the forecast of further deterioration, the CAQM sub-committee on GRAP decided to invoke all measures under Stage-III. These measures correspond to ‘Severe’ air quality levels and have been implemented as a precautionary step to prevent further decline.

The Stage-III actions will be enforced in addition to the restrictions already in place under Stages I and II of GRAP, which remain operational across the NCR. Officials said the combined measures aim to tighten controls on pollution sources, enhance monitoring and ensure stricter enforcement to curb emissions.

CAQM has directed pollution control boards and concerned agencies in the NCR to intensify preventive and regulatory steps. Authorities have been asked to ensure strict compliance with GRAP norms and take prompt action against violations.

Officials said air quality levels will be closely monitored, and further decisions will be taken based on real-time data and evolving weather conditions. Citizens have been urged to cooperate with advisories and follow measures aimed at reducing pollution levels.

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PM Modi to visit Bengal and Assam, launch Vande Bharat sleeper train and key projects

PM Modi will visit West Bengal and Assam on January 17 and 18 to launch India’s first Vande Bharat sleeper train and inaugurate major infrastructure projects.

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Prime Minister Narendra Modi will visit West Bengal and Assam on January 17 and 18, where he will flag off India’s first Vande Bharat sleeper train and inaugurate, dedicate and lay the foundation stone for a series of infrastructure and development projects across the two poll-bound states.

Vande Bharat sleeper train to be flagged off from Malda

On Saturday, the prime minister will visit Malda in West Bengal around 12.45 pm and flag off the country’s first Vande Bharat sleeper train connecting Howrah with Guwahati (Kamakhya) from the Malda town railway station.

Later in the day, around 1.45 pm, he will address a public programme in Malda where he will dedicate to the nation and lay the foundation stone of multiple rail and road projects worth more than Rs 3,250 crore.

Development projects in Hooghly district

On January 18, around 3 pm, the prime minister will visit Singur in Hooghly district, where he will inaugurate, lay the foundation stone and flag off various development projects worth around Rs 830 crore.

During the visit, Modi will also virtually flag off four new Amrit Bharat Express trains connecting New Jalpaiguri with Nagercoil and Tiruchirappalli, and Alipurduar with Bengaluru and Mumbai (Panvel). These services are aimed at improving affordable long-distance rail connectivity and strengthening inter-state economic and social linkages.

New train services and highway projects in north Bengal

The prime minister will flag off two new train services with LHB coaches — Radhikapur–SMVT Bengaluru Express and Balurghat–SMVT Bengaluru Express — providing direct connectivity from north Bengal to major IT and employment hubs.

He will also lay the foundation stone for the rehabilitation and four-laning of the Dhupguri–Falakata section of National Highway-31D, a project expected to significantly improve road connectivity and the movement of goods and passengers in the region.

Additionally, Modi will lay the foundation stone of four major railway projects in West Bengal, including a new rail line between Balurghat and Hili, next-generation freight maintenance facilities at New Jalpaiguri, upgradation of the Siliguri loco shed and modernisation of Vande Bharat train maintenance facilities in Jalpaiguri district.

He will also dedicate the electrification of the New Coochbehar–Bamanhat and New Coochbehar–Boxirhat rail sections, enabling cleaner and more energy-efficient train operations.

Cultural programme and Kaziranga corridor in Assam

On January 17, around 6 pm, the prime minister will attend the Bodo cultural programme “Bagurumba Dwhou 2026” at Sarusajai Stadium in Guwahati. More than 10,000 artists from across Assam are expected to perform the traditional Bagurumba dance in a single synchronised presentation.

On January 18, around 11 am, Modi will perform the bhoomi pujan for the Kaziranga elevated corridor project, valued at over Rs 6,950 crore, at Kaliabor in Nagaon district. The 86-km project includes a 35-km elevated wildlife corridor passing through Kaziranga National Park, along with bypasses and highway widening works aimed at improving connectivity while protecting biodiversity.

During the Assam programme, the prime minister will also flag off two new Amrit Bharat Express trains — Guwahati (Kamakhya)–Rohtak and Dibrugarh–Lucknow (Gomti Nagar) — strengthening rail connectivity between the northeast and northern India.

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NDA’s track record strikes chord as PM Modi hails Maharashtra civic polls win

Prime Minister Narendra Modi hailed Maharashtra voters after the BJP-led NDA registered a historic victory in the BMC elections, ending decades of Shiv Sena dominance.

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Prime Minister Narendra Modi on Friday thanked the people of Maharashtra after the BJP-led National Democratic Alliance registered a landmark victory in the Brihanmumbai Municipal Corporation elections, marking the first time the party has emerged on top in the country’s richest civic body.

In a post on X, the prime minister said the people of the state had endorsed the NDA’s agenda of governance and development. He said the results of municipal corporation elections across Maharashtra showed that the alliance’s bond with voters had further strengthened.

According to PM Modi, the NDA’s track record and vision for development had “struck a chord” with the electorate. He described the verdict as a mandate to accelerate progress while celebrating Maharashtra’s cultural legacy.

BJP-Shiv Sena alliance dominates BMC

As counting continued, trends showed the BJP leading in 90 of the 227 wards in Mumbai, while the Eknath Shinde-led Shiv Sena was ahead in 28 wards. The Ajit Pawar-led NCP faction, which contested separately, was leading in only three wards.

On the opposition side, the Shiv Sena (UBT) and Maharashtra Navnirman Sena were ahead in 57 and nine wards respectively. The Congress, which contested in alliance with the Vanchit Bahujan Aghadi, was leading in 15 wards, while others were ahead in eight.

The outcome effectively ends the Shiv Sena (UBT)’s decades-long control over the Brihanmumbai Municipal Corporation, which had been the party’s main power centre since its formation.

In the seat distribution, the BJP contested 137 wards and the Shinde-led Shiv Sena 90. The Ajit Pawar faction of the NCP fielded candidates in 94 wards. On the opposition side, Shiv Sena (UBT) contested 163 seats, the MNS 52, the Congress 143, and the Vanchit Bahujan Aghadi 46.

Urban verdict weakens Pawar influence

The results in Pune and Pimpri-Chinchwad also sent a strong political message, indicating that the Pawar brand no longer guarantees success in key urban centres. Despite tactical coordination between the two NCP factions led by Sharad Pawar and Ajit Pawar, voters did not consolidate behind them.

In the Pune Municipal Corporation, the BJP emerged with a clear upper hand, either winning or leading in a significant number of wards. The NCP factions failed to convert their traditional influence into broader citywide support.

Thackeray retains Marathi Manoos connect but loses power base

Uddhav Thackeray appears to have retained a section of the Marathi Manoos vote in Mumbai, even as the Shinde-led Shiv Sena made inroads. While the Shiv Sena (UBT) managed a respectable showing in its traditional strongholds, the loss of control over the BMC is seen as a major setback.

Control of the civic body had long been central to the party’s political identity and a key factor in its alliances.

Devendra Fadnavis emerges as key strategist

Much of the credit for the BJP’s sweeping civic success is being attributed to Devendra Fadnavis. Under his leadership, the Mahayuti alliance has carried forward its assembly election momentum into municipal politics.

The results are being seen as reinforcing Fadnavis’s political standing, demonstrating that even combined opposition forces could not halt the BJP’s rise. The verdict has also challenged the long-held claim of the Thackeray family over Marathi votes in Mumbai.

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