Hmm you know I was wondering if Viraj after lots of soapy twists and turns decides to play Jhanvi and Raghav at their own game; and use their lies about the fake marriage and Jhanvi's husband's supposed death against them?
Firstly though I think Raghav was granted bail (although this should be made clear), because his lawyer argued that at the time Sundar was attacked he was getting married.
God only knows but maybe like all the detective and crime movies, there's some medical 'evidence' that shows, due to his wound that Sundar was attacked within a certain timeframe. So if Raghav argued that he was getting married during that timeframe at a location miles away from the garage, he could then have enough 'evidence' of his innocence to walk free. Pretty lame I know, but that's the best I could come up with!
Also again I think Viraj will himself struggle to prove that Sia is really Jhanvi his wife. And with Raghav and around he can't really physically threaten and harms the Singhs.
But what he can do is use their fake tactics against them. He can convince the Singhs to arrange a huge celebratory party for Ragavi''s marriage and ensure that, some of his old business partners are on the guest list. Maybe those same partner's that once came over to dinner when he and Jhanvi were married? They sure wouldn't fail to notice Jhanvi and Viraj for who they are, and thus Viraj can prove that Jhanvi is his wife, whilst retaining the act of memory loss.
And even if Jhanvi does refute his claims, and protest that she is just a lookalike, I'll doubt very much that Gayatri and the rest of the Singh's won't be become suspicious.
Most likely scenario though is Viraj deciding to manipulate the situation, to such an extent where he arranges his marriage to either Komal or Tashu. Most likely Komal as I think regardless of her attraction to him, Gayatri won't like the idea of Tashu marrying a widower at her young age. But Komal and Viraj, now they are both two young people who fate has been cruel to in Gayatri's eyes. She already has some notion of Viraj as being similar to her deceased elder son, and she wouldn't want Komal lonely and Krish without a father, so marriage between the two would seem like a good idea.
But we all know that Raghav will never let such a marriage happen. No way would he let Viraj whisk off his Bhabbi and beloved nephew. And the only way he can stop this marriage is by proving that Viraj is already married, which means admitting he and Jhanvi lied.
Longshot scenario I know, but this still seems to me, to be a very Viraj style twisted and manipulative method to get what he wants; which is Jhanvi admitting in public herself that she is his wife.