What kills the spread: NPAs
IRAC norms: RBI's rulebook for bad loans
RBI's uniform rulebook for when banks must stop booking interest on bad loans and provide.
Why it matters
A worked example
On a ₹1 cr loan at 10%, the day it turns NPA the bank not only stops booking ₹10 lakh of interest but must reverse interest already counted.
The picture
What it leads to
Where it sits in the map
Follow the causation