Can someone explain the difference between the different kinds of banks in India:

Scheduled, Co-operative, Nationalised, Private, Foreign, Rural etc.

And when an investor considers fixed deposits what is the relative safety in fixed deposits from the different kinds of banks?

And how does it compare with the safety of a fixed deposit from a solid stable company or a Non-Banking Financial Company (NBFC)? Can someone rank all in order of safety fixed deposits from these different entities (explaining the reason if possible)

Also when evaluation a company for safety of it's fixed deposits, I look at the Interest Cover Ratio of the company for the last 4-5 years.

For a Bank or a Non-Banking Financial Company, how do I analyze it's relative safety?

Actually, my question came about from reading the following 2 posts by Alchemist

Tata Motors Fixed Deposits 11%
Tata Motors Fixed Deposits 11%

Today, I started researching about depositor insurance and after reading this

http://www.dicgc.org.in/English/FD_A...Insurance.html

I would assume that an FD+interest of up to 1 lakh in almost any bank is solidly safe, right?

Or are some caveats?