Nobody really knows yet..some say he is Neha's son and some say Vikram's son.
My own speculation is that he is Neha and Vikram's son from early days (he does seem older than Rahul - their first son)..whom they had given up owing to the fact that they were still unmarried/confused/young etc...and then Vikram kept sending money every month to an orphanage feeling bad abt that (Ram had a lawyer check in Vikrams finances and thats when this had come up)
Maybe the kid is so full of anger and out seeking revenge for him being abandoned that he threatened Vikram and Neha with widespread devastation of their other kids if they dont divorce and 'hurt' their other children by making them near 'orphans' like him...
Thats my wild wild guess...😕