The Code sharing is a common term in aviation industry which means that a seat is purchased on one airline (for example King Fisher) but is actually operated by a cooperating airline under a different flight number or code (for example British Airways). The term "code" here refers to the 2-character IATA airline designator code and flight number, which is used to identify the flights.

Previously there were 3 types of NBFC's classified by reserve bank of India:

1. Asset Finance Company (AFC)
   
2. Investment Company (IC)
   
3. Loan Company (LC)
   

Which is 4th Category?

NBFCs engaged predominantly in the infrastructure financing represented to the RBI that there should be a separate category of infrastructure financing NBFCs in view of the critical role played by them in providing credit to the infrastructure sector. Accordingly the RBI declared in its Second Quarter Review of the Monetary Policy for the year 2009-10 as follows:

To introduce a fourth category of NBFCs as 'infrastructure NBFCs', defined as entities which hold minimum of 75 per cent of their total assets for financing infrastructure projects.

So, apart from the three categories viz., Asset Finance Companies, Loan companies and Investment Companies, a fourth category of NBFCs as "Infrastructure Finance Companies"(IFCs) has been introduced.

Unlike the Banks, they cannot accept demand deposits, they are not part of the payment and settlement system and they cannot issue cheques drawn on them. The facility of deposit insurance by Deposit insurance and Credit Guarantee Corporation is not available for NBFC's.