A few Questions that popped in my Mind !

#1)
I am a Final Year Student.
There are Some Companies recruiting students like TCS,IBM,Capgemini,CTS,Wipro,Infosys etc

I want to know about these companies in a relative manner
like "this better than that"
in terms of the following
a.Training (During first Few months)
b.Pay Increase
c.Chance of going overseas (Abroad)
d.Work

PS.- i got in one these !

#2)
What do you guys think about doing a second Btech in a Different Subject (Which i really like !) [From a Central Institute - not Private college]