If Riddhu actually gets to know that AP & Kabir are d masterminds, I believe, then to stop AP & Kabir from succeeding in their plan, Riddhu will bring Vihaan to pose as VR !!
This will make a lot of sense. She will despise d antics of Vihaan but will have no other way but tolerating him !!!
It will be interesting to see her reminding him to be in limits & if Vihaan is actually VR ,he will get to know actual Ridhuđ