On 27 October 2026, researchers at UC San Diego announced a method for changing magnetic states with light to write digital information. The study, published in Nature Communications, used a shaped and reduced ultrafast laser beam to switch magnetisation in a magnetic material. The researchers estimate that the technique could operate more than 1,000 times faster than conventional magnetic switching methods.
Jio Platforms debuted on the BSE and NSE, following its historic ₹30,213-crore Initial Public Offering (IPO) that generated an unprecedented ₹7.3 lakh crore in bids.
Researchers at the Center for Astrophysics | Harvard & Smithsonian, MIT and Harvard University unveiled Lumina on 26 October 2026. The simulation models the first two billion years of the universe, including interactions among ordinary matter, dark matter and radiation. It covers a region approximately 1.5 to 1.6 billion light-years across on each side.
India and Mexico formally launched negotiations for a Preferential Trade Agreement (PTA) after signing the Terms of Reference (ToR) in Mexico City on 26 October 2026. The signing took place during the visit of India’s Commerce Secretary Rajesh Agrawal. The proposed agreement follows an understanding reached by Prime Minister Narendra Modi and Mexican President Claudia Sheinbaum at the G7 Summit in Canada in June 2025.
The Ministry of Tribal Affairs will observe Janjatiya Gaurav Pakhwada nationwide from November 1 to 15, 2026. The fortnight will culminate in Janjatiya Gaurav Diwas on November 15, the birth anniversary of tribal freedom fighter Dharti Aaba Bhagwan Birsa Munda. The Government of India designated November 15 as Janjatiya Gaurav Diwas in 2021 to honour tribal heroes and their contributions.
The Earthshot Prize 2026 will take place in Mumbai on November 16–17, 2026, marking the award’s first event in India. The sixth annual Awards Night is scheduled for November 17. The city was announced as the host during the inaugural Mumbai Climate Week on February 17, 2026.
The 11th edition of the India–Indonesia Joint Special Forces Exercise ‘GARUDA SHAKTI’ commenced at Banyuwangi, Indonesia.
Two nearly complete fossil skeletons of Gerrothorax maritimus, identified as the first known fully marine stem amphibian, were discovered in Guizhou Province, China. The animal lived about 237 million years ago, during the Late Triassic. The study was published in Nature Ecology & Evolution on 26 October 2026.
The Central Board of Indirect Taxes and Customs (CBIC) issued Circular No. 257/03/2026-GST on 26 October 2026. It sets out timelines and procedures for GST registration, including deemed approval when a proper officer takes no action within the applicable period under the Central Goods and Services Tax (CGST) Rules, 2017.
The Uttar Pradesh Food Safety and Drug Administration (FSDA) issued comprehensive regulatory guidelines cracking down on the widespread use of prohibited industrial chemical dyes in street foods.
On 27 October 2026, the Supreme Court of India reserved its order on petitions challenging medicine prices and trade margins. The Bench of Justices Vikram Nath and Sandeep Mehta questioned the Centre’s regulation of medicine prices and the disparity between the price to retailer (PTR) and maximum retail price (MRP).
The 17th Conference of the Parties to the Convention on Biological Diversity (CBD COP-17) is being held in Yerevan, Armenia, from 19 to 30 October 2026. On 27 October, Union Minister for Environment, Forest and Climate Change Bhupender Yadav delivered India’s National Statement at the conference’s High-Level Segment. India reaffirmed its commitment to biodiversity conservation and implementation of the Kunming-Montreal Global Biodiversity Framework (KMGBF).
