Flying Machine — about return product

My son purchased a jeans from amit s kalal flying machine dungarpur by invoice no s41014/1/2018/73 product is mens mid rise skinny jackson jeans but iwant to return this product in within 10 minutes but shop keeper behaviour was yery roodly tell sold item van not be return within 10 minutes and he gave product forcely me. Tell me this way is right costumer can not be return any product within 10 minutes
There no rules in india costumers can not be return product within 10 minutes and your frenchie's is very rood mr amit kalal so tell him take product back