Western Digital has released a slimmed-down model of 2.5-inch hard drives that are small enough to fit inside a regular sized laptop and an ultrabook, using the standard 9.5mm slot. Western Digital is calling this range WD Blue, which has been designed to shocks up to 400G. The 500 GB model (WD5000LPVT) is selling for Rs.3,600; whereas the 320 GB model (WD3200LPVT) is going for Rs.3,150