It can be done very easily. Indian media is owned by Indian intelligence agencies. Not that this practice is immoral. Not only is it legitimate, it is also necessary. Because if desi intelligence agencies don't own Indian media houses, foreign intelligence agencies would buy them.
Now coming to your question of how to hide plane crashes and frames:
If media doesn't report it, nobody will come to know about it. The locals who witness such events would forget it in one or two years. Cover-up of plane crashes is very easy.
Please stop.