S. 263: Commissioner-Revision of orders prejudicial to revenue-Charitable purpose-Objects of general public utility-Providing a platform for conducting transactions of member banks-Charging only nominal fees to recover cost of infrastructure and operations-Assessing Officer, after making specific inquiries, allowed exemption under section 11-Revision order was quashed and set aside.[S. 2(15), 11, 12, Companies Act, 1956, S. 25]