The government is mulling over giving discounts of between 10-52% on expressway charges and electric train tickets for a three-month period, as part of its attempt to boost ridership figures.The proposed discounts have been approved by the Mass Rapid Transit Authority of Thailand's board, and the plan will be forwarded to the cabinet for endorsement on Tuesday, said MRTA's board chairman, Sarawut Songsivilai."Under the proposal, fares on the MRT's Purple Line will be capped at 20 baht per ride from Dec 25 to March 31 -- a 22-baht reduction from the current upper ceiling of 42 baht," he said.