As Avni said there is something fishy about Neil.That guy literally turns out to be everywhere.
1.He is Rhea's fiancee
2.He is Ali's friend
3.He was there at the spot where Daya shot Avni.
What's the common link between all these things?? Avni.Neil is present at places which are related to Avni.He is familiar with people who knew Avni.
There are high possibilities that he is planning something.
Neil is the missing piece of the puzzle.If he turns out to be Akash then it would explain everything.
When Ali was telling Neil about the Mehtas,Neil told him that he knows everything.Well I guess he was telling the truth.He knows everything about Avni's history.
He is really good at concealing his feelings.We have only seen him getting misty eyed when someone talks about love.
Maybe Neil had a plan ready.But what nobody expected was the fact that Avni is alive which changes the dynamics of the story.
Neil is the most mysterious character of the series.There was always something more to him.Usually in TV series,someone whom the protagonist knows in childhood or is connected to becomes their love interest.Before the leap I used to think that Avni's love interest will be Ali.But then Akash came into the picture and post leap a completely new character Neil emerged.It was surprising for sure but Neil turning out to be Akash explains a lot of things.