Let me share the rule of IRI
The following solution is being proposed.
1. All names in IRI will be updated according to what is mentioned in the actual Train Board.
2. Where...
more... there are 2 regional languages mentioned in TB, 2 regional languages will be present in IRI. Where 3 mentioned, 3 will be updated in IRI.
3. If one TB shows regional languages A & B, and another TB shows languages A & C, ALL languages A, B & C will be updated in IRI.
ACCORDING TO TB ONLY NAMES ARE TO BE UPDATED.
No Bengali in TB so not to be updated.