What I can't fathom is this...
Why even involve Shahsank in Nikhila's plans at all? If she was so desperate to marry Shiv with Gauri, why didn't Mahen or she take the proposal to Ajoy directly? After all they are friends. It's quite likely that he would have agreed to the Shiv/Gauri match without a murmur. For one thing, he knew the family and loved and respected them. They are rich and would have looked after Gauri whom they love. Ajoy wouldn't have bothered with a kundali.
And if Shiv refused to comply, they could have told him the same thing they did anyway to force him to marry Gauri....to disinherit him from the property.
Hence, all this tamasha with Shahank would have been so unnecessary.
What do you guys think?