Master Link
https://paytm.com/shop/g/electronics/pendrives-hard-disks-memory-cards/external-hard-disks?brand=2678&sort_popular=1

Use promocode - HDD15
Use promocode HDD15 to get 15% cashback*. Max 2 Items per order, 3 orders per user. Max cashback Rs. 1200. COD is not available on applying this promocode.
Shipping Charges: Rs 25


Rs 3681/- https://paytmmall.com/wd-elements-2-5-inch-1-tb-external-hard-disk-black-cmplxwd_elements_1tb_black_168-pdp

PC
Rs 4649/- https://www.flipkart.com/wd-elements-2-5-inch-1-tb-external-hard-drive/p/itmdmhdqfhr4ndhq
Rs 4599/- https://www.snapdeal.com/product/wd-elements-25-inch-1/131655018
Rs 4049/- http://www.amazon.in/WD-Elements-Portable-External-Drive/dp/B06VVS7S94
Rs 4209/- https://www.infibeam.com/Computers_Accessories/wd-elements-portable-hard-drive/P-coac-6993173660-cat-z.html
RS 4299/- http://www.ebay.in/itm/292057500235