Amazon has discounted Enter Bluetooth USB Dongle to Rs. 80. Features Keep your desk free of messy wires with the Enter Bluetooth USB Dongle & The adapter uses your PC USB port and wirelessly connects other Bluetooth enabled devices like mobile phones, etc.
Buy: Enter Bluetooth USB Dongle | More Computers & Accessories
SMI, I missed it. As hudhud says lowest is Rs 133.
Lowest available price is 133