I applied in-person. The process took 1 day. I interviewed at DPFOC (Jaipur, Rajasthan) in Feb 2011
Interview
You need to have good communication skills and good in technical also. Degree doesn't matter here but if you have BE or BTech it would be easy for you to enter in the company. If you have good reference in the company, it would be easy for you to clear the test.