Contatct Rashi directly in kolkatta..No need of going to the purchased shop ...and take the bill along with card
Rashi Peripherals Pvt Ltd. 19, R.N. Mukherjee Road, Eastern Building, Ground Floor, Kolkata - 700 001. Tel No.: +91 - 033 - 40011603/1604 ...
^^Got from Google ..Plz confirm it