Under which provision did the U.S. revoke the duty free imports on 50 Indian products?

Former Director of Indian Space Research Organisation Satellite Centre (ISAC), SK Shivakumar died at the age of 66 in Bengaluru. He hailed from Mysuru, Karnataka. He was part of the team which had developed telemetry system for India's first moon mission Chandrayan - I. He served as the project director for India's first indigenous Deep Space Network Antenna at Byalalu. He also led the team of 2,500 engineers which contributed to ISRO's Mangalyaan Mission. He contributed in several missions like Bhaskara, INSAT, IRS-1B and IRS-1C. He also served as the director of ISRO Telemetry, Tracking and Command Network (ISTRAC). He was Padma shree awardee and also honoured with Karnataka Rajyotsava award (2008).

First AH-64E (I) - Apache Guardian helicopter was formally handed over to the Indian Air Force at Boeing production facility in Arizona, USA. Air Marshal AS Butola, represented the Indian Air Force and accepted the first Apache.

The researchers at the University of California, Los Angeles (UCLA), US created a 3D-printed device that that can produce electricity from falling snow. The device is small, inexpensive, thin, flexible like a plastic-sheet and can work anywhere because it provides its own power and does not need batteries. The research study was published in the journal 'Nano Energy' and UCLA's Richard Kaner is the senior author of it. The device termed as snow-based triboelectric nanogenerator or snow TENG, generates charge through static electricity and produces energy from electron-exchange.

India-Bangladesh jointly inaugurated 4 development projects. Prime Minister Narendra Modi and his Bangladesh counterpart Sheikh Hasina jointly unveiled e-plaques for development projects in Bangladesh through video conferencing. This was the sixth such video conference between PM Modi and Prime Minister Hasina. It includes Supply of buses and trucks; Inauguration of 36 community clinics; Inauguration of 11 water treatment plants; Extension of National Knowledge Network to Bangladesh.

Union cabinet approved the sanction of Rs 4315.15 crore for the 158 Central Educational Institutions (CEIs) for implementation of reservation in admission to students belonging to Economically Weaker Section (EWS). The Rajya Sabha on January 9 approved amending the Constitution to provide 10% reservation to general category poor in jobs and education, with the government terming the landmark move as "slog over sixes". The quota will be over and above the existing 50 per cent reservation to Scheduled Castes, Scheduled Tribes and Other Backward Classes (OBCs). With the approval of the Cabinet, over 2 lakh additional seats will be created in 158 Central Educational Institutions (CEIs) across the country to implement 10% reservation for the Economically Weaker Section (EWS). while 1,19,983 additional seats will be created during 2019-20 academic session, 95,783 seats will be added in 2020-21.

NASA's OSIRIS-REx spacecraft broke a record after successfully entering into orbit around the asteroid Bennu - the smallest cosmic object ever to be orbited by a spacecraft. NASA's OSIRIS-REx spacecraft, 110 million kilometers away, carried out a single, eight-second burn of its thrusters. The manoeuvre placed the spacecraft into orbit around the asteroid Bennu. The spacecraft will circle Bennu about 1.75 kilometres from its centre, closer than any other spacecraft has come to its celestial object of study.

German pianist Nils Frahm declared the 88th day of a year(29th March) as the World Piano Day, as modern standard pianos have 88 keys. It has been celebrated in dozens of cities around the world over the past years. Many people were attracted towards the van by the piano's beautiful melodies, taking photos and cheering for the performers, Xinhua news agency reported. Launched by Universal Music Group, an American global music corporation, the event also celebrated the global release of Chinese pianist Lang Lang's new album Piano Book, a collection of pieces he has loved and played since childhood.

Indian Space Research Organisation (ISRO) will launch 29 satellites including the primary payload EMISAT, on the first of April. Polar Satellite Launch Vehicle, PSLV-C45 will take off from Satish Dhawan Space Centre in Sriharikota tentatively at 9:30 AM carrying the satellites onboard. EMISAT has been developed for monitoring radar network by India. EMISAT, weighing 436 kg, is intended for electromagnetic spectrum measurement. It will be placed in an orbit of about 753 km altitude. The customer payloads are from Lithuania, Spain, Switzerland and the US. They will be hurled into space at an altitude of about 505 km.

India has signed a deal with a Russian firm to manufacture 7.5 lakh AK-203 rifles. These are the latest derivative of the AK-47 rifles. Defence Minister Nirmala Sitharaman stated that the AK-203 rifles will be produced at the Indian Ordnance Factory at Amethi's Korwa. The new rifles will replace the indigenous INSAS rifles in the Army, Air Force, and Navy.