Under Certificate of Posting : It was a postal service in which the ordinary letters were sent and post office issued a confirmation on a paper that the said article has been received by it. There was a nominal fee of ₹ 2/- up to three articles (letters). In addition to postal stamps affixed on the envelopes, the sender had to write the detail of addressee on a plain paper and had to affix stamps of ₹ 2.
This paper, after putting the Post Mark, was returned to the sender of the articles. This service served a legal proof that article had been sent by the sender. The Postal Department has discontinued the UPC service (Ordinary post service) from the last few years.
The franking machine is used to weigh and correctly frank all of your outgoing mail, meaning you no longer need to waste time standing in lengthy Post Office queues to wait on mail being processed. It will do all of this and more for you, allowing you to run your office and manage your time more efficiently. You are effectively cutting out the middle man, by doing the job of the person behind the counter at the Post Office.