can u give me more info about share knowledge........ i m unknown person of share market and i m interested to knowing SHARE MARKET.......... ??? only 1 account (dmat a/c) open and this account used by different companies like ; INDIABULLS, RELIGARE, SHAREKHAN, ICICI......... what is the DMAT account..... plz advise me.... beause i m planning to open dmat account but i m confused which comapny provide me full satisfaction.... if i m open DMAT a/c in ICICI Bank then can i used this account to buy and sell by sharekhan...... or not....... tell me. my email id is : short_institute@rediffmail.com; sincere_delhi@rediffmail.com