Question

It is a certificate issued by the post office on payment of prescribed fees when the sender wants to have a proof that he has actually posted the letters

Answer 1

Answer:

However, if a sender wants to have a proof that he/she has actually posted the letters, then a certificate can be obtained from the post office on payment of prescribed fee. This is called 'certificate of posting'. ... This paper now serves as an evidence of posting the letters.

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