I applied through a recruiter. The process took 2 months. I interviewed at Anonymous Content (Gurgaon, Haryana) in Sep 2014
Interview
1 TELEPHONIC ROUND & 3 FACE TO FACE TECHNICAL INTERVIEWS mainly from Photonics background.OSI layers L0/L1 was asked to explain.
Technical sound knowledge is required to crack the interviews.
Come prepared with topics like Dispersion,Colorless,Directionless features of L0 alongwith OTN frame structure data rates.