Koraput- Jagdalpur Doubling Project on KK line: Design, Proof checking, Construction, Testing and Commissioning of Ballast less track including other allied works for six Tunnels ( Tunnel No. T1- From Ch. 1707 m to 1990 m, T2- From Ch. 3240 m to 3540 m, T3- From Ch. 4510m to 4620m, T4- From Ch. 5120m to 5420 m & T5- From Ch. 6140 m to 6250 m, T6- From Ch. 10027 m to 10285 m ( Total- 1397 m ) between Jarati & Maliguda stations in connection with Jagdapur- Koraput Doubling Project of East Coast Railway.