National Science Day in India is celebrated on February 28th every year. This day commemorates the discovery of the Raman Effect by the Indian physicist Sir C.V. Raman on February 28, 1928, for which he was awarded the Nobel Prize in Physics in 1930. National Science Day is an opportunity to recognize and celebrate the contributions of Indian scientists and to promote scientific temper and curiosity in the country.

The Kalinga Prize is an international award given by UNESCO (United Nations Educational, Scientific and Cultural Organization) for outstanding contributions to the popularization of science. It is awarded to individuals who have effectively communicated and popularized science to the public, promoting a better understanding of scientific issues and fostering scientific literacy. The award is named after the ancient Indian kingdom of Kalinga, which is present-day Odisha in India.

INS Shalki is the first indigenously built submarine in India. It is part of the Shishumar class of submarines and was commissioned into the Indian Navy on December 7, 1991. INS Shalki, along with its sister submarine INS Shankul, marked a significant achievement in India's naval capabilities as it was built at the Mazagon Dock Limited in Mumbai, showcasing the country's growing capacity to design and construct submarines domestically.

the Indian Railway Institute of Civil Engineering (IRICEN) is located in Pune, Maharashtra, India. IRICEN is one of the specialized training institutes for civil engineers working in the Indian Railways. It provides training in various aspects related to civil engineering in the context of railway infrastructure and operations.