This is a random bonus offered to players even without having o send money to their betting accounts. It could be either a reward for loyalty or a welcome carrot. Either way, the player gets to benefit because they can use it to play various games in the casino and get tangible wins.
India is one of the most interesting countries and cultures in the world, and the second most populous country. Gambling laws in India are complicated, making games of skill legal and games of luck illegal. "Games of skills" inlcude poker, horse racing, and lottery. Online gambling is not specifically regulated, but is considered illegal.