Indian Post Office — Postman misbehaving

Address:

Jaipur, Rajasthan, 302018

Dear sir,
I am priya jain from jaipur rajasthan,
I have one urgent speedpost which has chequebook from Hdfc bank, which was delayed by 2days already and suppose to deliver today so I called post office for the enquiry. Post office's post gave the number of the postman and said Dinesh hi must have ur consignment or you ask him he'll guide you if the other post man has the consignment. I called Dinesh jo and asked about my consignment he asked my plot number and got to know that I am the same girl who did't give his desired tip on holi and caught him red handed when he was asking my father to give tip again when I have already gave him. So he used his anger hear and misbehaved so much, when I asked that I need that urgently so I'll come where you are and collect my belongings, he said post man will not according to you and it will be delivered in 4-5 hours. After calling many times he picked my call again and misbehaved again. When I told that I'll complain now and include the holi matter also he gave me ashokji the other postman's number . And finally after some time I got my consignment.
We book consignment with money and government paying them to deliver, for what reason should I have him tip on every small occasion but then we never ask we always give it's been 20years but their hunger is more that that.