These videos explain the process: http://www.youtube.com/watch?v=zqUVTnE-Yzk and http://www.youtube.com/watch?v=Et3VgJobTrU
You also need to take care while preparing pickle:-
- the container must be of glass ware,properly cleaned and dried.
- the salt should be little more so it won't let fermentation.
- after purchasing all whole spices, put them under sun for a day or two, it will make them dry, for an alternative you can fry them in deep frying pan (kadhai) without oil at medium flame, then grind them finely powdered in grinder.
- let it be cooled down to room temp, keep away from water or any such container which may moisten it.
- mix all the spices and oil well with the chopped pieces of mangoes (you can chop according to your will 4-6 pieces of a mango), and put them in that cleaned jar/pot.
- your pickle is almost ready, now last what you need it to keep that jar under sun for approx 4-6 days regularly. It will help in reducing fermentation and you can keep your pickle for long.
The most important while making pickle your hands, jars/pots must be clean and dry properly. And in case you are purchasing all powdered spices then fry them in frying pan without oil one by one each ingredient on sim flame.