DishTV offers Rs.52 Cashback on recharge of Rs.350. When you will do recharge of Rs.350, you will get Rs.402 in your dishtv account.
You can do the recharge via online or from dealers. On online recharge you can get some more too. If you are a Amazon Pay user. Then you can get more 35 Cashback as Amazon pay balance on recharge of Rs.350. So you will pay only Rs.315 and will get Rs.402 in your DishTV account. After successful recharge you have to call on 1800-315-7607 to get Extra 52 Cashback in next 7 days of the recharge.
To check if the offer is available for you or not you can call CC or can check on dishtv website/app.