I am having account with their Bangalore Branch Office ( not any franchisees ) .Since I gave good volume they gave good exposure for margin trading - offline account.But you should develop a rapport with a dealer ( trader who places orders for you ) so that they can see your trading style , consistency , profit making etc ... then they will ask for more exposure from their head office for you . This is applicable for any Broking company .MF Global's fundamental calls also good.But whoever gives you a tip always check with your charts and cross check before taking any decision.
I am having account with various people but with my experience I am satisfied with India bulls , MF Global and Angel Broking.All three are good.
Good luck