[colnrkurup]

Courier acknowledgement (POD) with stamped dated receipt is an authentic proof of delivery. Even the court of laws have accepted it. As regards certificate of posting, it prove that only one letter has been posted or dropped in the post box. I dont' think it can be of much help. Normally any letter with correct addres will be delivered at the place of addressee. In case of only the miscreants who is in search of an excuse for not providing the information,the excuse of non-receipt of application comes in. To obviate this excuse one has to resort to speed post or registered post or reputed courier service who give POD with dated stamped receipt. In extreme cases I follow a system of complaining to the Customer Care of Postal Department that a particular speed post/registered letter is not delivered. In such cases the postal department trace it and reply back the date and time of delivery of the letter. In one case this system has helped me a lot. No one less than our Army HQs continued to plead that my application has not been received by them. When I forwarded the reply of Customer Care of Postal Department, it compelled the Army HQs to sarch every where, locate and admit receipt of my application.