This is the experience I have had while traveling in India:

1. Security procedure is standard across all the airports irrespective of whether its for domestic or international travel.
2. The moment you enter the airport, your luggage that is intended for checking in is x-rayed by airport security personnel (they carefully watch the image on the screen and sometimes ask you what one or two particular object in the bag is). Then a 'screened OK' sticker is placed covering the lock/zipper so that you cannot open the baggage before checkin in (well, not that foolproof, but I have seen that the sticker is designed such that it does not come out as a single unit, it breaks into pieces if you pull it out, making it very difficult to open and close the baggage).
3. After checking in, you move to the 'security check' with your boarding pass. You are quickly scanned using a hand held metal detector (female inspector for female passengers, always). Your cabin luggage is x-rayed (more carefully than the checked in baggage). Your boarding pass and tag on cabin luggage are stamped indicating that you have been checked.
4. You reach the departing gates area. You cannot go back to the check in or security screening areas without seeking the help of a police/security officer (remember Atlanta).
5. At the boarding gate, the tag on your cabin luggage and boarding pass are checked for security stamps.
6. If there is a specific security threat situation that has been declared (such as intelligence reports of a possible Pakistani/Kashmiri terrorist threat), a 'police officer'(in uniform) hand searches your cabin luggage. In such situations you also might notice a few strategically positioned police officers/RAF(Rapid Action Force) personnel with light machine guns in the airport.
7. Baggage matching is always done for domestic and international flights.

At the end, you feel 100 times safer when you get into the plane in any airport in India than JFK or LAX or IAD or MIA.

I know air traffic is far less in India compared to USA. But, can't we at least standardize the security procedure in all the airports for christ's sake?!