Tinsukia, May 30: Three days after the inauguration of the longest bridge of India, Bhupen Hazarika Setu, the pitch for demand to expedite installation of lights on the bridge for security of the commuters has grown louder.

This comes in the wake of the first accident reported on the bridge last night in which two youths were seriously injured.

Arup Buragohain, 27, and Dhiren Jyoti Chiring, 18, both residents of Meseki village under Sadiya subdivision, were travelling from Dhola to Sadiya when they hit one of the temporary camps, on the south bank of the bridge, with their speeding motorcycle.

Arup lost his left arm in the accident.

The temporary camps, with tarpaulin overhead, were set up for security purpose on both sides of the bridge at the time work started in 2011, and are still being used.

Demanding immediate steps to illuminate the bridge, All Tai Ahom Students' Union Sadiya subdivision committee president Jatin Buragohain said lighting and security are two major aspects involving safety of the commuters and the bridge and should have been addressed prior to inauguration.

"You don't move in a house and then propose for lighting arrangement, do you?" asked Buragohain. "In the absence of lights, the bridge will become quite vulnerable to accidents and militant attack," he added. "Lack of security on the bridge will invite trouble for the commuters," said Haragovinda Borkakoty, principal of Sadiya College.

He added that reports of hooligans consuming liquor on the bridge and indulging in rash driving are a serious matter and needs to be controlled by the authorities before crimes are committed.

Regional officer of ministry of road transport and highways Paban Kumar said, "An estimate is in place and the Centre's approval is being awaited for the process to begin."

The 9.15km-long bridge has been attracting a large number of locals from Tinsukia and the neighbouring districts ever since it was opened to the public.