First of all I would like to inform MCX ( Multi commodities exchange) is purely legal.
Regarding safety I can not assure 100% .
Because if something wrong happened and price get fluctuate due to sudden global news or any other technical fault then exchange does not get responsible.
but your investment amount is safe maximum amount of 25 lakh if anything mishappened with Broker.
Mcx is being offered by all brokers. To trade in MCX u need to open an account with any broker like zerodha, profitmart, upstox etc.
What are the instrument available in MCX?
Gold and silver.
Lead, Zinc, Aluminium, Copper, NIckel
In Energy segment
Crude oil, Natural Gas.
Apart from these also they have some Agri products like
Black peeper, Cardamom, rubber, Mentha oil etc.
But mainly Agri products does not have good volume in trading platform, so most of the traders choose bullion, metals and energy segment for trading.
Commodity market is highly leveraged product by exchange so it is a high risk and high reward things, so instead of start trading, watch the price movement and calculate the loss profit ratio for 2-3 months initially then go for trading.