Why is it?

that Shiv can grip Vyom, and today Vidyut, yet he can't touch Sharanya? Or when he "does" the she freezes? Vyom and Vidyut didn't freeze...

This is Indian tv show! You should not ask such smart questions!!!🤣😆

Nothing happens to Odhni when he communicates with Odhni too.

This means Shiv never touched Sharanya before. The charges against Shiv on the sensitive points should be taken back.

Blooper...these inconsistencies are very consistent in tv shows

Exactly!
He can posses Vyom and still Vyom doesn't freeze. He killed Vidyut in water/chemical but that was not frozen! Then why only Sharanya feels cold?
My guess is he may be sucks life sources from Sharanya or intentionally does this to remind her something happened in Kapali hill. May be they had an accident there like the movie of Ajay Devgan( Shivaya?). My guess. I read in some horror story that sometimes when bhoots suck life source to live in this world the victim feels cold. May be this is the reason.
But I don't understood why he has to jump in that room? Woh toh bhoot hai...and he was there...so why this Bollywoood style High Jump! 😆