Honestly if you have more than 4-5 it becomes difficult to manage, also it takes money to keep running various services, I would rather suggest opening a really good (but still in your budget) preferential/higher verient account with one bank and others zero balance. Kotak 811 is ideal zero balance a/c, so is sbi but in case of sbi you still end up paying for atm and sms services etc. Club that with high verient HDFC/AXIS/HSBC/SC account and you are good to go. I usually don't recommend ICICI, nothing really wrong with it but I usually see lot of cases of fraud and forced selling from that bank.