Amazon India — refund not received till date

Address:

Aligarh, Uttar Pradesh, 202001

I have purchased puma shoes from amazon india past one month and i have returned them but refund will not be done till date what should i do now.
My name is ishan bansal and my mail id [protected]@gmail.com
My order id number is[protected]. Please let me know when i should get a proper and satisfactory reply and refund my amount of rs.2020
In my bank account.
Please resolve this issue as early as possible otherwise i will file a suite on the company.