I just find out the law regarding the Indian National Flag.
1.) The Prevention ofInsults to National Honour Act, 1971 Section 2: Whoever in any public place or in any other place within public view burns, mutilates, defaces, defiles, disfigures, destroys, tramples upon or otherwise bringsinto contempt (whether bywords, eith~r spoken orwritten, or by acts) the Indian National Flag . or any part thereof, shall be punished with imprisonment for a term which may extend to three years, or with fine, or with both.
2.) (xiii) when the Flag is in a damaged or soiled condition, it shall be destroyed as a whole in private, preferably by burning or by any other method consistent with the dignity of the Flag.
3.) 3.25 When the Flag is in a damaged o! soiled condition, it shall not be cast asid~ or disrespectfully disposed of but shall be destroyed as a whole in private, preferably by burning or by any other method consistent with the dignity of the Flag.
according to the story, he did not do it in public, so the 2.) is more like what he did. maybe the flag is already damaged or soiled.