India Post offers a variety of postal services to its customers such as speed post, registered post, ordinary post, Value Payable Post, etc. One can use any of these services as per his needs from any of the post offices in his nearby area.
Documents/letters which are not so important and urgent, can be sent by ordinary post at very cheap rates. For urgent documents/letters, one can use speed post service.
The main benefit of using India Post postal services is that it covers all over India. Even very reputed companies sometimes return parcels saying the area is not covered. But this never happens with India Post because it covers all parts of India.