I have a mate who did time in India. The CVR's were pulled on instructions by the DGCA and listened to, on a regular basis.
The the CVR is for accident investigation only, not for spying on pilots IIRC. CVR transcripts have been known to fall into the hands of employers. For a fee no doubt.
The New Zealand police tried this trick also, to prosecute a crew after an accident.
Talk about a load of snakes.