Thanks for writing back in detail.
We have tried to answer each of your question below :
"What will be my take home salary p.m? "
Your monthly take home will depend upon how much you want to keep in your Flexible pay kitty. If you don't keep anything in your kitty than you will get Basic + 135% FBP - PF - PT
"Am i paid at the higher end in that band ? " "if i join IBM in this march 2012 in 7A band will there be good hike ?
Yes you are getting a high salary in the band, which is actually bad, because it means that you won't get good salary hikes, unless you move up to a higher band. But since you have only 7 years of experience, you were not offered Band 7B
"when will the PBC ratings or appraisal be completed in IBM when will the hikes happen if i join in march 2012. " "will i be part of the june 2012 appraisal ? how much % i can expect ? "
PBC ratings normally happen in December, so your rating will happen in Dec. 2012. Salary hikes happen in June, but since you will be new to IBM, you won't get any in this cycle, your salary hike will happen in June 2013
"I am planning to move to a PM role shortly in 1/1.5 years. will it be easy in IBM? "
What is the job role offered to you ? Yes you can move into PM role, complete PMP certification ASAP.
"also when will i get promoted to 7 B band(time frame from 7a- 7B for a 7 yr experienced) what i thought of getting during joining itself for which they did not agree."
Once you are in the PM role, you should try to get to 7B. But it will not happen before 2013.
"After 6 to 8 months joining, i am ready/interested to go to onsite, not now. that is one reason i am resigning from the present compnay as there is much pressure to travel to onsite imemdiately. How abt the onsite oppurtunities in IBM ? "
You need to talk to your manager, depending upon your account you might have onsite opportunities. You might have to change your account if you don't have opportunities in your current account.
"are there many projects for IBM in PLM-Teamcenter domain particular? any idea about the names of the clients ? Automobile OEMS mostly will be implemeting Teamcenter. any idea ? US or european clients more for them ?( as i have good interaction with european clients) ?"
We won't have that details, but IBM is a huge company and you will have all kind of clients, you just need to search for it.
Hope we have answered all your questions. Good Luck.
Do refer us to your friends and family.