Yes you can place two orders for futures as long as you have free cash in the account, during order placement your margin utilization should be less than 100% of your capital in that case only it will allow you place both orders.
Cover orders comes with SL/SL-M orders only, Zerodha has Bracket orders for futures in nse f&o segment where you can place both SL & target orders, for mcx right now they have CO only & BO will be launching shortly.
Thanks Sam for your valuable answer, My further question is will SL/SL-M order prevail for the all days till i cancel SL/SL-M order or is it same (1) day only.