The Punjab government has approved Anil Ambani group's Rs 5,000 crore multi-product special economic zone (SEZ) in the state.The proposal of Reliance One World, a Reliance-Anil Dhirubhai Ambani Group (R-ADAG) firm, was among the 43 mega projects approved by Punjab's empowered committee, headed by Chief Minister Amarinder Singh yesterday, a state government spokesperson said.The proposed SEZ is likely to be set up over an area of 5,000 acres and is expected to involve direct investment in excess of Rs 5,000 crore and would have food and agri product units, auto and engineering industries and garments and apparel manufacturing plants.The approval comes close on the heels of super mega agri-product SEZ being developed by Mukesh Ambani-managed Reliance Industries.