STCG and LTCG Taxation

commercial or industrial property is not allowed ?

hw to save tax on the capital gain on the sale of commercial/industrial property ?
sale gain on the sale of commercial/industrial property can only be set off via buy of commercial/industrial property ?

can STCG and LTCG , on sale of property both , can be set off as per section 54F , 54 ec ; 54ee ?