Dear Ayush
For general inquiry about agri commodities you should visit
http://www.ncdex.com
Margins are different on every agri commodity First you must understand the methodology of this market as it quite different in terms of Physical delivery.
It is always advised to trade with technical in these markets and with a Stop loss due to nature of High volatility of these contracts. Do you remember Guar trade on ncdex this year... If you want to understand this market then i would encourage you to keep in touch with Grain Mandi (Anaj Mandi) Traders. You will understand sowing and harvesting of various agri product in details and price movements in seasonal times.