Mounting revenue deficit has left the Kerala State Electricity Board with no option but to raise the tariffs sooner than later, according to State Power Minister Aryadan Mohammed.

The board expects its operations during 2014-15 to leave a deficit of more than Rs 2,900 crore, the Minister told newspersons here.

A tariff revision would alone help it to recover at least a part of the increased expenses incurred for procuring costly power purchases.

The discomfiting financial position has been made clear to the Kerala State Electricity Regulatory Authority, the Minister said, in which some proposals have been made.

A final decision on tariff revision would be taken after the commission examines the accounts and organise hearings to invite public comments.

The most pertinent issue has been that the availability of cheaper power from hydel sources from within the state has not kept pace with the increased demand. Sourcing energy from the liquid power stations is becoming a costlier proposition by the day.

The Minister said that during the 676 days left for completion of its term, the Government proposes to sanction 8.7 lakh new connections across the state.