^^^ The best way to end this menace is to legalize sports gambling in India. I don't know why the government hasn't legalized it yet, when other countries such as the United Kingdom and Australia have done that. When you make something illegal, criminals get an added advantage to push it underground and rig the system, away from the eyes of the authorities. My advice - legalize and regulate.
The only reason its not legal in big scale because we are big hypocrite as a society and policy makers comes from the society. It become such a taboo in the society that no politician going to openly favors the legalization of gambling.
Truthfully speaking, I think that the government is involved with all this shady stuff.
Few states do run their state lottery etc. i would be very happy if every state legalize the land-based gambling, it can generate loads of revenue as well.