The government plans to reserve a quarter of new petrol pumps, a coveted money-spinning business, for Other Backward Classes (OBC) as it seeks to woo a key voting segment that has a strong bearing on election results.  State-run firms Indian Oil Corp, Hindustan Petroleum and Bharat Petroleum, which have a near-monopoly in fuel retail, will have to allot 27% of new pumps to OBCs. Currently 25% of the pumps are reserved for Scheduled Castes and Scheduled Tribes and another quarter is reserved for defence personnel, freedom fighters, sportspersons and handicapped people.