I know my OPINION is going to be an unpopular one but I'm going to say it anyways.
Himanshi and Shefali J did push Asim to be against Sidharth. I'm not saying Sidharth didn't make mistakes but they pushed Asim and gave him a false sense of confidence when they told him something like he's leader of their group, etc etc. They made Asim feel like he could create his own group without Sidharth, but the problem is whenever Asim has tried to lead this group, they didn't really listen to him.
Like captaincy task, what happened to sticking to Asim? Why did Himanshi and Shefali J vote for Sidharth? It doesn't matter if Sid was going to win with all the votes. What matters is you stand for the person you stand for regardless of whether anyone is standing or not. Asim stood by Himanshi's captaincy and did all the work, but when it came to giving him a vote, she didn't give it to him, but kept saying nice words to him as if that mattered.