Guys..I am a WBUT student who converted last year and I was a fresher.
Regarding the DGPA to percentage conversion..for the freshers who are currently in their 4th year just need to ask for a written statement from their institute that until and unless you complete the course there is no specific way of percentage calculation hence you multiply it by 10. I did that during my time.
As for the people with work ex...it would be better to multiply it by 10 first. If at the time of admission they object (which they generally don't, because they did'nt even ask me for my certificate of marks conversion) you can say that there is no specified way to do it. If you can convince your college to provide you with a similar document as the freshers that would be even greater because I know guys who were able to obtain that from their respective colleges.
I hope this would solve most of your queries.
A request to all...all those who are sending request to join the facebook group...please do add your pg id with your name on Facebook temporarily so that we can verify them easily before adding them on the group.
Guys..first of all congrats for getting the Interview call for IIM Calcutta
Remember this is just half the journey....the most important part is still left so pull up ur socks everybody....
We are here to answer your queries and offer any kind of help necessary.