Will be collating links to FOSS events happening in India (FOSS United organised or otherwise) along with their call for proposals, stands etc. here.
We do not endorse these events in any way, just posting them about here so FOSS maintainers can keep track of activities happening all over the country 
CFP for Open Source Summit India is open - Open Source Summit India 2026: Call for Papers @ Sessionize.com
CFP Deadline - 4 March, 2026
Event Date - 16-17 June, 2026
Location - Mumbai, India
Audio Developer Conf India is happening in Bengaluru on 29th March 2026.
https://audio.dev/adcx-india-26/
Applications for diversity grants are open - ADCx India 26 – Diversity Grant Form