Government cable — Deposit amount for cable connection

Address:

Chennai, Tamil Nadu

Hi i am Senthil living in Ponni Amman kovil street, Shollinganallur, Chennai Around my place, the government cable operators asking non refundable deposit 500rs depends upon the place for the cable connection.If we ask regarding this means they are telling like " this is government rules, if you not pay advance means we can't bring connection for you". But I searched all websites regarding the deposit and I didn't get that government never ask deposit to the people.Then why they are asking deposit to the people