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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

Case registered against Mamata Banerjee over controversial 2025 religion remark

A formal police case has been registered against Trinamool Congress supremo Mamata Banerjee in Siliguri, West Bengal. The complaint alleges that her 2025 “Ganda Dharm” remark targeted Hinduism and hurt the religious sentiments of the community.

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Mamata Banerjee

A formal police complaint has been lodged against Trinamool Congress (TMC) chief Mamata Banerjee in West Bengal’s Siliguri. The legal action stems from an alleged derogatory remark regarding Hinduism made during an Eid congregation in Kolkata in 2025.

The case was registered following a complaint filed by a local lawyer, Rinki Chatterjee, who alleged that the former Chief Minister’s comments deeply hurt the religious sentiments of Hindus globally.

Legal charges and complaint details

The police have invoked multiple sections under the Bharatiya Nyaya Sanhita (BNS) against Banerjee, including Section 351(1) for criminal intimidation, Section 352 for intentional insult with intent to provoke breach of peace, and Section 353 for promoting feelings of enmity, hatred, or ill will between different communities.

According to the complaint, the controversy traces back to an Eid event organized on Kolkata’s iconic Red Road in 2025. While delivering a speech targeting the Bharatiya Janata Party (BJP), Banerjee purportedly referred to the version of Hinduism championed by the political rival as “Ganda Dharm” (filthy religion).

Chatterjee stated in her complaint that labeling Sanatan Dharma in such a manner at a religious gathering was “absolutely unacceptable”. The complainant also pointed to other instances where senior TMC leaders allegedly targeted Hinduism, adding that Banerjee made indirect threats to the Hindu community during the 2026 West Bengal Assembly election campaign to influence voters through intimidation.

Political responses to the FIR

The reported statements had previously drawn sharp criticism from the state BJP leadership last year, including strong objections from current Chief Minister Suvendu Adhikari. However, this FIR represents the first formal legal action taken regarding the speech.

When approached for a response, Atri Sharma, a lawyer and general secretary of the TMC’s Darjeeling unit, declined to comment officially as a party spokesperson. However, he noted that many within the party internal circles found the remarks inappropriate at the time they were spoken. Sharma acknowledged that holding a high public office required restraint and affirmed that every individual holds the moral right to pursue legal remedies.

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Enforcement Directorate raids former Kerala Chief Minister Pinarayi Vijayan’s residence in money laundering probe

The Enforcement Directorate on Wednesday carried out searches at the Thiruvananthapuram residence of former Kerala Chief Minister Pinarayi Vijayan and 11 other locations in connection with a money-laundering probe registered in 2024.

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The Enforcement Directorate on Wednesday conducted extensive searches at the Thiruvananthapuram residence of former Kerala Chief Minister Pinarayi Vijayan. The action comes as part of an ongoing money-laundering investigation, with the central probe agency executing simultaneous raids at 12 separate locations across the state under the Prevention of Money Laundering Act (PMLA).

Broad Crackdown in Financial Probe

The central agency’s operations focused significantly on Vijayan’s rented residence in the state capital, alongside eleven other locations, including premises in Kochi, Kozhikode, Kannur, and Bengaluru. This major enforcement action was initiated shortly after the Kerala High Court dismissed a petition on Tuesday, which had been filed by Cochin Minerals And Rutile Ltd (CMRL) seeking to quash the ongoing ED proceedings.

The roots of the financial investigation trace back to a PMLA case registered in 2024. The core allegation involves an estimated illegal payment of ₹1.72 crore made between 2017 and 2019 by a private entity, Cochin Minerals And Rutile Ltd (CMRL), to Exalogic Solutions, an IT firm owned by Vijayan’s daughter, T Veena.

According to investigators, the financial transactions took place despite the IT firm allegedly rendering no services to the private company. Apart from the financial probe agency’s scrutiny, the Serious Fraud Investigation Office (SFIO) is also independently conducting an inquiry into the wider financial transactions of the matter.

Political Developments

The searches also covered locations linked to other political and executive figures associated with the matter, including premises connected to senior CMRL executives. While the ruling party has previously described the investigations as politically motivated, the central agency has intensified its probe following the high court’s refusal to grant interim relief to the private firm. The case has sparked intense political debate, with opposition parties using the findings to allege financial irregularities, while local party leaders maintain that the transactions were part of a legitimate business arrangement.

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IPL 2026 Qualifier 1: Rajat Patidar, Virat Kohli shatter playoff records as RCB crush GT to reach final

Defending champions Royal Challengers Bengaluru advanced to their second consecutive IPL final after a historic 92-run demolition of Gujarat Titans in Qualifier 1, powered by Rajat Patidar’s breathtaking 93*

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Defending champions Royal Challengers Bengaluru (RCB) created history in the Indian Premier League (IPL) 2026 Qualifier 1 against Gujarat Titans (GT), sealing their spot in a second consecutive final with a clinical 92-run victory on Tuesday.

Riding on captain Rajat Patidar’s blistering, unbeaten 93 off just 33 balls, Bengaluru piled up a colossal 254 for 5 in their 20 overs after being asked to bat first at the scenic Dharamsala stadium. The monumental total surpassed the previous playoff benchmark of 233 for 3, set by GT against Mumbai Indians in 2023, making it the highest-ever score in IPL playoff history. In response, a ruthless RCB bowling assault dismantled the Gujarat Titans batting line-up, bowling them out for 162 in 19.3 overs.

Patidar blitzkrieg anchors historic RCB innings

After GT skipper Shubman Gill won the toss and opted to field, RCB’s top order asserted early dominance by racing to 76 for 1 within the powerplay. Venkatesh Iyer provided a quickfire 19 off seven balls, while Devdutt Padikkal struck 30 off 19 deliveries to set a brisk tempo.

The foundation allowed Virat Kohli to maintain the middle-order momentum with a fluent 43 off 25 balls. With this knock, Kohli carved out another historic milestone, becoming the first player in IPL history to accumulate over 600 runs in four consecutive seasons. Jason Holder briefly checked RCB’s charge by removing both Kohli and Padikkal in the 10th over to leave them at 99 for 3.

However, skipper Rajat Patidar took complete control from there on. Surviving two dropped catches early on, Patidar launched a brutal counter-attack, smashing five fours and nine towering sixes at an astonishing strike rate of 281.81. He combined forces with Krunal Pandya, who played a crucial anchoring role with 43 off 28 balls, putting together a blistering 90-run partnership. Patidar turned particularly merciless in the death overs, hammering a massive over from Kulwant Khejroliya as RCB finished their death overs on an absolute high.

Gujarat Titans collapse under scoreboard pressure

Faced with a steep mountain to climb, the Gujarat Titans chase imploded right from the start, losing five wickets inside the powerplay against a lethal pace battery. Openers Sai Sudharsan and skipper Shubman Gill were dismissed in the third and fourth overs respectively.

Sudharsan, the tournament’s leading run-scorer, suffered a bizarre and unfortunate dismissal when his bat slipped during a cut shot, knocking back his own stumps to be out hit-wicket off Jacob Duffy. Gill followed shortly after, cleaned up by an excellent delivery from Bhuvneshwar Kumar.

Jos Buttler offered a brief, aggressive resistance by hitting four boundaries and two sixes in a quick 29, but Australian pacer Josh Hazlewood exacted quick revenge by clean-bowling him in the fifth over. From a precarious position, the Titans slipped further as Jacob Duffy tore through the middle order, dismissing Washington Sundar and Rashid Khan.

Rahul Tewatia was the lone warrior for the Titans, waging a solitary battle to smash a fighting 68. His aggressive hitting brought up the team’s hundred in the 13th over and dragged the side past the 150-mark. However, the target proved far too distant. Krunal Pandya claimed the final wicket in the final over, dismissing GT’s tailender Mohammed Siraj—who was caught by Tim David—to bundle out GT for 162, securing the second-largest victory margin in IPL playoff history for RCB.

While RCB marches straight into the grand finale with ultimate momentum, Gujarat Titans remain alive in the tournament. They will get another opportunity to reach the final when they play the winner of the Eliminator clash between Sunrisers Hyderabad and Rajasthan Royals in Qualifier 2.

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