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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

Lok Sabha clears bill to levy cess on pan masala and similar goods for health, security funding

The Lok Sabha has passed a bill to impose a cess on pan masala manufacturing units, aiming to create a dedicated revenue source for public health and national security initiatives.

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Nirmala Sitharaman

The Lok Sabha has approved the Health Security se National Security Cess Bill, 2025, paving the way for a new cess on pan masala manufacturing units. The legislation aims to generate dedicated funds for strengthening national security and improving public health, both areas identified as critical national priorities.

Bill aims to create predictable funding stream

Finance Minister Nirmala Sitharaman, responding to the debate before the bill was passed by voice vote, said that the cess will be shared with states because public health falls under the state list.

The new cess will be applied over and above the GST, based on production capacity and machinery used in units manufacturing pan masala and similar goods. The minister clarified that this cess will not affect GST revenue, and that pan masala already attracts the maximum GST slab of 40 per cent.

According to the bill text, the objective is to build a “dedicated and predictable resource stream” to support expenditure related to health and national security.

Sitharaman also mentioned that cess collection as a percentage of gross total revenue currently stands at 6.1 per cent, lower than the 7 per cent average between 2010 and 2014.

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India News

Simone Tata passes away at 95: A look at the visionary who shaped Lakme and modern retail

Simone Tata, the pioneering business leader who built Lakme and helped shape India’s modern retail sector, passed away at 95. Here’s a look at her legacy.

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simone tata

Ratan Tata’s stepmother and celebrated business leader Simone Tata passed away on December 5, 2025, at the age of 95. Known for her pioneering role in building Lakme and transforming India’s retail landscape, she leaves behind a remarkable legacy that redefined Indian consumer culture.

A legacy that shaped Indian business

Simone Tata, born in Geneva in 1930, first came to India at the age of 23. Two years later, in 1955, she married Naval H. Tata and gradually became an integral part of the Tata family’s business vision. Her journey with the Tata Group began in the 1960s, when she was appointed to Lakme—then under Tata Oil Mills.

Under her leadership, Lakme quickly grew into one of India’s most trusted cosmetic brands. She rose to the position of managing director and later chairperson, introducing global formulations and modernising beauty products for the Indian market. Lakme’s rise was also rooted in a strong national vision—launched on former Prime Minister Jawaharlal Nehru’s suggestion to reduce foreign exchange spent on imported makeup.

Transforming retail through Trent and Westside

After Lakme was sold to Hindustan Lever Limited in 1966, Simone moved to Trent, where she helped build one of India’s earliest modern retail chains. This later gave birth to Westside, a brand that has become synonymous with contemporary Indian shopping culture.

She also played a key role in philanthropic initiatives, guiding organisations such as the Sir Ratan Tata Institute and supporting cultural and children-focused foundations.

Family, personal life and final farewell

Simone Tata is survived by her son Noel, daughter-in-law Aloo Mistry, and grandchildren Neville, Maya and Leah. She also drew public attention in recent years for being the only member of the Tata family to attend Cyrus Mistry’s funeral, despite the widely known strained ties between the families.

Her funeral will take place on Saturday morning at the Cathedral of the Holy Name Church in Colaba, Mumbai.

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India News

Centre orders probe into IndiGo crisis, expects normal flight operations in three days

Amid record cancellations by IndiGo, the Centre has ordered a high-level inquiry and expects flight schedules to stabilise by Saturday, with full normalcy in three days.

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indigo

The Centre has initiated a high-level inquiry into the massive disruption of IndiGo’s operations, with the government projecting that flight schedules will begin stabilising by Saturday and full normalisation is expected within three days. The announcement comes as cancellations by the airline crossed 500 for the second consecutive day, severely impacting passengers across major airports.

Civil Aviation Minister Ram Mohan Naidu said the government has directed urgent measures to ensure swift restoration of services. Within minutes of his statement, the aviation regulator DGCA announced the formation of a four-member committee to examine the circumstances leading to the delays and cancellations.

DGCA forms committee as cancellations spark scrutiny

The DGCA said IndiGo was given sufficient time to implement revised Flight Duty Time Limitations (FDTL), yet the airline recorded the highest number of cancellations in November. The regulator added that the pattern suggested gaps in the carrier’s internal oversight and preparedness, warranting an independent probe.

The committee will review the sequence of events that triggered disruptions and recommend measures to prevent a recurrence.

Flight duty rules relaxed; minister defends move

Amid criticism from the Opposition and experts, the DGCA temporarily suspended certain FDTL rules, increasing pilot duty limits from 12 to 14 hours. The changes were widely questioned, with allegations that the government was yielding to pressure from IndiGo.

Naidu defended the decision, stating the move was taken solely to safeguard passengers and that safety standards would not be compromised.
He reiterated that passenger care and convenience remain the top priority.

Assurance of refunds, real-time updates, and support

Highlighting steps taken to ease passenger distress, the minister said airlines must:

  • Provide accurate, real-time updates before travellers leave for airports
  • Initiate automatic refunds for cancelled flights without requiring follow-ups
  • Arrange hotel accommodation for passengers stranded for extended periods

Senior citizens and persons with disabilities have been accorded special priority, including access to lounges and additional assistance. Refreshments and essential services are to be provided to all affected travellers.

Inquiry to determine accountability

The government said the high-level probe will identify what went wrong at IndiGo, establish responsibility, and recommend systemic corrections to ensure such disruptions do not occur again.

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