India, Feb. 7 -- The electronic voting machines (EVM)s in which votes were polled for the Delhi assembly elections are stored in strongrooms under three-tier round-the-clock security. The outermost security layer - the entry/exit of the premises on which the strongrooms are located - comprises State Armed Police. The middle layer comprises Delhi Police personnel. The innermost perimeter, outside the sealed doors to the strongrooms, is guarded by Central Armed Paramilitary Forces.

There are 70 such strongrooms in 19 locations across the city, each location containing EVMs from nearby constituencies, officials in the office of the chief electoral officer said on Thursday. Each strongroom has a double lock system, videography is mandatory w...