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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.

Published

4 years ago

February 28, 2022

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.

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.

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.

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India News

Delhi-NCR sees second spell of rain and thunderstorms in four days

Delhi-NCR experienced another spell of rain and thunderstorms on March 18, with IMD forecasting more showers over the next few days.

Published

2 hours ago

March 18, 2026

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Delhi and parts of the National Capital Region witnessed another spell of rain, thunderstorms, and strong winds on Wednesday evening, marking the second such weather event in the past four days.

The sudden change brought relief from unusually high temperatures recorded earlier this month. According to officials, the temperature at Safdarjung — the city’s base weather station — was recorded at 24 degrees Celsius at 7 pm.

The India Meteorological Department had earlier issued an alert predicting light to moderate rainfall accompanied by thunderstorms and lightning on March 18. Several areas across the capital experienced gusty winds along with brief but intense showers.

More rain likely over next two days

The weather department has forecast partly cloudy skies for March 19 and 20, with chances of light rain or thundershowers occurring once or twice during the day. On March 21, skies are expected to remain cloudy with the possibility of light showers continuing.

Conditions are likely to stabilise from March 23 onwards, with forecasts indicating a return to partly cloudy to clear skies across the region.

Weather activity across India to intensify

The IMD has also indicated widespread weather activity across multiple regions of the country in the coming days. Rainfall is expected to intensify in several states, accompanied by thunderstorms, lightning, and gusty winds.

In the northeastern region, heavy rainfall is likely over Arunachal Pradesh, Assam, and Meghalaya during the early part of the week.

Meanwhile, the western Himalayan region is also set to witness a shift in weather patterns. Himachal Pradesh is likely to receive heavy rainfall on March 19 and 20, while Uttarakhand and Jammu and Kashmir may experience heavy showers around March 20.

India News

Centre pushes states to cut levies to boost PNG adoption

The Centre has asked states to reduce local levies and streamline approvals to accelerate PNG adoption and city gas infrastructure growth.

Published

4 hours ago

March 18, 2026

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The Ministry of Petroleum and Natural Gas has urged states and Union Territories to ease local levies and procedural barriers affecting City Gas Distribution (CGD) projects, in a bid to accelerate the adoption of piped natural gas (PNG) as a cleaner fuel alternative.

In a communication sent to Chief Secretaries, Petroleum and Natural Gas Secretary Neeraj Mittal highlighted that high right-of-way charges, road cutting fees, lease rentals and other local levies imposed by urban bodies are discouraging investments in CGD infrastructure.

High costs slowing expansion

The ministry pointed out that the CGD sector, particularly PNG supply to households and commercial establishments, does not receive direct subsidies. As a result, it depends heavily on viable returns, which are being impacted by excessive and inconsistent local charges across states.

It noted that these financial and procedural hurdles are slowing down infrastructure expansion and affecting the broader adoption of natural gas.

Gap between connections and usage

According to the government, while around 12.63 crore PNG connections have been recorded, only about 1.6 crore are currently active. The ministry stressed that improving ease of doing business at state and local levels could help bridge this gap and expand the consumer base.

Officials believe that rationalising levies may initially reduce local revenues but could lead to higher long-term gains through increased gas consumption and economic activity.

LPG shortage adds urgency

The push for PNG adoption comes amid supply constraints in liquefied petroleum gas (LPG), linked to ongoing tensions in the Middle East. Oil marketing companies are currently supplying only 20 per cent of normal commercial LPG demand to states.

To address this, the ministry has proposed increasing LPG allocation to 30 per cent for states that implement reforms supporting PNG and CGD expansion.

Reform-linked incentives for states

The Centre has suggested a set of measures that states can adopt to qualify for higher LPG allocations. These include:

Setting up empowered state and district-level committees for faster approvals
Introducing single-window clearance with deemed approvals within 24 hours
Implementing a dig-and-restore model using bank guarantees instead of restoration charges
Eliminating annual rental or lease charges for CGD infrastructure

The ministry said compliance with these reforms would be verified before granting additional LPG allocations.

Industry support measures

The communication also noted that GAIL and its subsidiaries have already allocated full gas supply to the commercial PNG segment to support businesses affected by reduced LPG availability.

The government reiterated that expanding natural gas usage aligns with its broader push for cleaner and domestically sourced energy.

India News

BJP seals Assam seat-sharing pact, Modi to hold 3 rallies in April

BJP has finalised its Assam seat-sharing plan with allies and is gearing up for an intense campaign led by PM Modi and Amit Shah.

Published

5 hours ago

March 18, 2026

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The Bharatiya Janata Party has finalised its seat-sharing arrangement for the upcoming Assam Assembly elections, firming up its strategy alongside National Democratic Alliance partners as campaigning gathers pace in the state.

Under the agreement, the BJP will contest 89 seats, while its allies — Asom Gana Parishad and Bodoland People’s Front — will field candidates in 26 and 11 constituencies respectively. The distribution has been decided after internal deliberations, with the focus now shifting to candidate announcements and campaign execution.

Campaign push led by top leadership

Prime Minister Narendra Modi is expected to address three rallies in Assam during the final leg of the campaign. Tentative dates for the rallies are April 1, April 3 and April 6, with events likely to be held in key constituencies.

Union Home Minister Amit Shah is also set to spearhead an extensive campaign across the state through March, aiming to energise party workers and strengthen voter outreach.

Candidate selection underway

The party’s Central Election Committee is currently meeting to finalise candidates. Sources indicate that approvals for most constituencies are expected soon, and the BJP may release its complete list of candidates within the next two days.

Ticket distribution remains a crucial exercise, with internal discussions highlighting its potential impact on local political dynamics. Party leaders have also touched upon the proposed delimitation exercise scheduled for 2027, which is expected to have long-term implications for Assam’s electoral landscape.