Linking savings bank account with trading account and demat account

Hi,
This is my first post. I have opened Demat account and trading account with a particular DP(also the broker). Every time If I want to buy shares I have to give cheque in person to them. Is there a way to link my SB A/c in State Bank of Travancore with these trading and demat account or whether I have to open a SB a/c in some other bank say UTI,ICICI or HDFC so that I don't go there in person to give the cheque?

Yes you can,ask your broker which bank's are approved for on line transfer of fund,open an a/c in that bank with on line transfer facility.