I have done my articles from Deloitte for 3.5 yrs. If you want audit, the only two options are EY and Deloitte. Dont go to PwC coz yet they have not entirely recovered from the Satyam disaster. KMPG is lil behind the other 2 in terms of revenue, processes and clients.
My advice is as follows:
EY is more professional and strict
Deloitte is more people friendly and flexible
Generally women are considered and not sent to outstation audit but that depends. Sometimes if you have a crazy senior, you cant help it. Deloitte was sensitive. I think most people will be.
Indirect Taxes:
I would advise that if you want to do a career in IDT, first start in a medium/small firm. Learn a lot there and then go to a big4 where you will be treated as an expert in it then.
Accounting Advisory:
I would suggest do a course in IFRS before you go to AA, coz its gonna be the next big thing in Accounting. So thats it.