Flipkart — Misfit trimmer costing Rs 1249 fooled with different cheap product and lost my money

I have ordered a Misfit trimmer for Rs1249 on 2nd July and got the it delivered through Ecom Express the product was COD and paid Rs1249 on receiving the product,

After opening the box I find that the product inside the box is different from what I ordered
I have taken photos and videos of the product which I have received and I raised my concern that the app is not showing the Product delivered and the product is shown cancelled .

This is fraud behaviour from Flipkart
I have lost my money and I haven’t got the product
I want flipkart to give Me the product which I ordered or return my money