Black Spot rectification work at Cinimaparambu km 1.900 Kadampanadu km 6.250 Nellimukal 11.000 Vellakulangara km14.750 Pannivizha km 17.900 Mankamkuzhy km 26.800,Omallur km 29.000 Pathanamthitta Stadium Jn.km 32.940 of NH 183 A in the state of Kerala (投標 №112833547cn)