Hi,
Came across this:
PMGSY releases 7 lakh geo-tagged facilities under government open data license
The page has FAQs about it including mentions of non-coverage of some regions and possible errors due to mobile GPS.
I'm not sure about the exact date of this data release. If someone knows, pls share.
From top menu, go to "Other Reports" -> "Facility Details". We have to select State, District, Block.
Note that "Block" here is an internal division method of PMGSY and need not co-incide perfectly with sub-districts.
The same site also has a lot of other data about habitation connectivity status with population figures etc.