Vantaggi
I worked here in chainsys for 2yrs full time. This is not a good company. They will take you first for very less salary around 13500 (if you are fresher). The first year, they will take work like anything and then they ill put apprisal maximum 5000/per month. your salary will be nearly 18500 next year(2nd yr). In case if you get any offer from Amazon or CTS or TCS, They won't release you and they will never give you an experience certificate to join in next company. They will try to keep you like a slave for less salary. So better join some other company gain experience and go to some big good companies. If you go with chainsys you can't even develop your communication skill.
Svantaggi
Very very worst HR team, They will speak like very cheap and worst. They won't treat the employee as educated resources. They will treat like beggars if you are asking for relieving order or experience certificate,