Relook – is there such a word?
I checked. There isn’t.
But from popular usage if words are born, then such a word is now born in Bangalore. The meaning is to “look again” or “revisit” or “re-verify”.

A vast majority of people use sentences like these:
“I will relook into it.”
“Could you please relook and update me?”

When I googled “relook”, all the sites that came up were Indian.

Does that provide a clue?