India seems to be going further than most in mandating open source rather than simply preferring it. Others are heading in that direction too, though. I was heartened to discover that the government in my homeland has specified both a preference for open source, and that open standards must be followed and all new source code made open - see https://www.gov.uk/service-manual/digital-by-default.  Many other governments have created similar stipulations - Mexico, Brazil, Peru,  and Argentina, for instance.