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Bureau of Civil Aviation Security is the agency responsible for framing the security protocols for civil aviation in India. They have a page for special items and a specific link for photographic film and equipment.
Per this page (emphasis mine)
Film
The equipment used to screen checked baggage will damage undeveloped film. Pack your undeveloped film in your carry-on bag. High speed and specialty film should be hand inspected at the security checkpoint. To facilitate hand-inspection, remove your undeveloped film from the canister and pack in a clear plastic bag.
The screening equipment will not affect digital cameras and electronic image storage cards.
As per the rules, you can request manual inspection of the film at the security checkpoint.