India, uses same power system as UK. So it should be compatible with the UK power cords released by Cisco. Product number is CAB-ACU=, and part number is 72-0557. Please note that this would work with all routers except the 7xxx. You didnt mention which router you are shipping.
Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus