widening from single lane to intermediate lane, strengthening and improvements to riding quality including reconstruction of culvert in government roads of ambasamudram sub division (tnv-88)a) widening from single lane to intermediate lane and strengthening at km 0/8 - 2/0 of mannarkovil - agasthiyarpatti road including reconstruction of culvert at km 1/2b) improvements to riding quality at km 9/0-10/4 of cheranmahadevi - panagudy roadc) improvements to riding quality at km 7/4 - 8/4, 8/6 - 9/0 of ambasamudram - papanasam - upper dam road d) improvements to riding quality at km 2/6-3/0, 4/0-4/4 of ambur - papanasam road