there is no best, why because they are taking us and spending for min 3 months, they are calling as training period, even if you have 2 years of experience by the way they are earning money with our efforts. I'm suggesting that don't join in the consultancy.
Cons
I went to interview with 2 years of experience in linux device drivers. they asked me to work as tester on python and also they asked me to commit bond for 2.6 years. Just think is perfect deal with 2 years experience person. If you think it's a fake review. Just you can have a trial.