well it's hard to find a good broker...an interface that executes what u want it to...
so the plain vanilla and high cost ones are out of question like icici direct,hdfcsec etc
so lets look at the other options available
religare,angel,indiainfo,geojit...(in no particular order)
and of course RKglobal and Rmoney since they provide gr8 tariffs...
so if u trade intra day ur criteria for choosing a broker will be totally different u can go for any of the above, hey whatever works for u!,Odin with 1paisa to 5 paisa brokerage will be fine i guess...
now if u r a intra day,positional & options trader then delivery becomes important along with options brokerage, so u can look for cheaper brokerage...some members are happy with RKGlobal...
the relationship manager that any broker provides is the key...when u talk to him let him know ur a serious player and give ur requirements and u wanna chk out a demo during market hrs...also negotiate on charges!
take ur time and visit atleast a couple of brokers before opening an account...
my chklist for choosing a broker would be:
1)trust-(isn't that the reason many people stick to icici,hdfc and end up payin' out of their skin)
2)cost
3)quality(good software, integration with bank account etc)
4)customer service(fast and responsive...RM shd be good but in any case the broker shd be reputed and shd resolve whatever issues u have)
All the best!
Krishna