These guys are the service guys to Telcos and Power Grid like companies. They have the know how and do the jobs needed for the giants. Recently from BSE I came to know that Valiant got projects from Power Grid worth 2Cr. They employ engg. students and get the job done for the big ones on a contract basis
Market Cap.: ₹ 73.93 Cr. for Valiant and
52 for Avantel. Really small and risky now from a market perspective.