1. Take a fresh raw mango which is very hard(it should not be soft other wise it will be sweet).
2. Wash and dry the mango.
3. Cut it into small peices till only the hard part is left.
4. Put the pieces in a bowl and add salt, red chilli powder and rye seed powder. All the three ingredients (salt. chilli powder an drye powder should be one small cup)
5. Mix them well by adding oil little by little. Just put 5 to 6 tbsps.
6. Cover the bowl and leave the mixture overnight.
7. Serve it with hot rice, dal and ghee. It will be super.

Tip: Shelf life of the pickle is one week but I can guarantee it will be done in less than 2 days.