When we repeatedly watch the episode, there are lot of things which makes you think about nominations!
Every housemate name was announced who will be going into the dome and Sid even though he was inside he knew when that person went in and when he came out as buzzer was hit!
he tried to distract Rashami so she doesnāt practice
I donāt believe that he didnāt know his time, when Paras said itās 17 mins, he said itās 10 only, but exactly got up after 7 mins as it added up to 17 mins
For Pahira somewhere he knew they have helped each other and maybe they can turn around
His main target was Vishal and I think he didnāt like Sana saying Vishal entertains me!
so he made sure he is in nominations and he already knew Sana was in nominations as he was outside with her when she was in the dome! He didnāt want any Sana fans favouring Vishal
His plan may Back fire but I think Salmanās words on Arti being very decent player must have helped him to think that Arti might get saved! He definitely didnāt want Vishal to be safe! As it was said that only 4 would be saved and 4 nominations, he might have taken the risk
Itās not a game strategy maybe but for personal reasons too
He doesnāt like Vishal coming closer to Sana