Rediff Shopping has Quantum Keyboard and Mouse PS2 for Rs. 329 & USB for Rs. 339.
Rs. 100 off on Rs. 299+ Coupon: GIFT100 (Payment details > Redeem Coupon Code)
Delhi – PS2 Rs. 217, USB Rs. 236:
Valid only on Tradus Android Mobile App - All Products – Rs. 200 off on Rs. 399+ Gift Voucher: SAVET200 (Download: Tradus Android Mobile App and search for Quantum Keyboard or Quantum Mouse)