@ the Ministry of Civil Aviation website, I found the following notice. From when has this been effective? It would be just fantastic news!
Removal of Restrictions on Photography
Hitherto, air passengers in India faced restrictions on photography
at terminal buildings of aerodromes and from inside an aircraft. These
restrictions have now been removed. Photography by passengers of
scheduled flights in terminal buildings of civil aerodromes and civil
enclaves of Defence aerodromes is now allowed. Passengers are now also
permitted to take photographs from inside an aircraft while in flight or
landing/take off at civil aerodromes. However, photography from inside an
aircraft is not permitted at Defence aerodromes.