There is a bond of 3 years and you will know this only after the interview with nothing in detail.There are five rounds of interview.
1)aptitude
2,3,4-techical 5-hr
"they want you to work for peanuts". Even if a company wants you to sign a bond they will say the value of the bond for sure.But these guys don't. Some are too arrogant , don't know how life would be after you join.