Wildcraft India — I'm complaining about the shoe I bought today evening

I bought trekking shoes from Wildcraft outlet Trivandrum today evening for my husband (Hypagrip RuNX TR Hugo Trekking And Hiking Shoes - Black).
I asked the salesman about the water proof because we are going to Himachal Pradesh he said yes and we picked our shoes. Later we realised that the shoes aren't water proof its only dust proof. The shoe cost around 4000 rupees and our date of trip is 15th. Is it possible to return the shoes.