Saving or current account

There are limits of withdrawl in SB a/c so people prefer CA in business.

I think banks are reluctant to entertain savings account for business transactions as they have to pay interest on it. But if transactions are nominal, they might not consider to flag it.

Is it beneficial to open a current account if I have a small business and I am just starting out?

Then SB Account is beneficial since it will fetch interest

but what if I want an overdraft facility in a Savings Bank Account? Is it available?

I mean can I withdraw more than my limit? More than the amount of money in my savings bank account?

Normally OD is not allowed in SB Account.

Its only allowed in a current account right?

OD is allowed neither in CA nor in SB but OD in itself is a separate type of account.

OD is allowed neither in CA nor in SB but OD in itself is a separate type of account.

I thought a certain amount of OD is allowed in current account holders? 

what does a different OD Account look like?