The RIL SEZ, which would be spread over 14,000 acres, will house the company's own facility besides those of other companies in the petrochemical sector.
The SEZ, which was announced by RIL chairman and managing director at the Gujarat global investors' summit, had received in principle clearance in September.
Adidas' proposal for a footwear SEZ at an investment of Rs 300 crore (Rs 3 billion) in an area of 100 hectares in Tamil Nadu has been given in-principle nod.
Besides the RIL SEZ, the board of approvals, which met under the chairmanship of G K Pillai, additional secretary, ministry of commerce, also approved a host of IT sezs including Dalmia SEZ in West Bengal to come up in an area of 3.5 million sq ft, official sources told.
The IT SEZs cleared will generate an investment of Rs 4000 crore (Rs 40 billion) and employment to the tune of 1.8 lakh, sources said.
SRM Infrastructure's multiproduct SEZ in Mewat, Haryana received in-principle approval along with Tamil Nadu Industrial Development Corporation proposal for multiproduct SEZ in Krishnagiri in Tamil Nadu.
The Board cleared Rajasthan Explosives multiproducts SEZ in Dhaulpur, Rajasthan and a 1,300 acre SEZ in Rangareddy, Andhra Pradesh.
Divi Labs' Rs 300 crore pharma SEZ has been accorded in-principle approval by the Board.