His response...

The handling officer of a source in Indian and Pakistani intelligence agencies is the person who looks after the welfare of the source, keeps him motivated and uses him as needed. The source cannot meet anybody else other than his handling officer except the head of the agency. One source--one handling officer is the general rule. This is to prevent the exposure of the operation and maintain its deniability. I understand in the CIA they call him the Running Officer of a source.

Thanks.

Raman