widening, strengthening, improvements to riding quality, culvert & protective wall including upkeeping works in sankarapuram (h) c&m subdivision jurisdiction (package 42)a-widening from intermediate lane to two lane and strengthening of thiyagadurgam adari road at km 2/0 - 4/0 including reconstruction of narrow culvert at km 2/6 (md811) including upkeeping for a period of 60 monthsb-widening from intermediate lane to two lane and strengthening of thiyagadurgam adari road at km 4/0 - 6/0 (md811) including upkeeping for a period of 60 monthsc-improvements to riding quality at km 0/0 - 1/6 of keelpadi aviriyur road including upkeeping for a period of 60 monthsd-improvements to riding quality at km 0/0 - 2/0 and 3/4 - 4/8 of periyapagandai yal road including upkeeping for a period of 60 monthse-construction of retaining wall at km 1/8 of tholuvandhangal pakkam road