Rahul,
These information that is illustrated above is 100% correct.
Most information you get from people are CPL holders.
Their perspective is right. Unfortunately, we do not have many CFI holders that are applying to India for their License that can give us an Instructor Perspective as to how these hours apply and that is why speak directly to the Boss and get the right answer
I am showing you the right directions. As mentioned from the above post, if you have CPL SE IR with a ME ADD on IR, then again I stress no 5 hours Night PIC Requirement because it all relates to IR. As IR can be on a single or multi, as a CFI, you will meet those requirements if you do flying in a single engine eventually. Airlines do not need you to have a ME IR endorsement. They do not care. If single engine IR, you can still show up for Interview and be hired for a heavy body aircraft type.
Now if you have done MEI, Then your GFT Day already applies if your MEI is done within 6 months. Same applies to GFT Day for CFI Rating and GFT Night with IR on a CFII. Again 6 months.
Cheers