Partnership new buseness on new name

One partnership firm who are doing medicines export business, partnership firm name abc pharma, now partners want to start new business of cloth export on name on abc impex under same PAN Card and under same partnership firm,
they want to take payment of export goods of abc impex on abc pharma Bank Account,
Is it Possible ? If yes, then how can we manage this ? say effcet of income tax, custome duty?