Recent local body election results in Bengal should definitely worry Amit Shah.
as for Punjab, Akaali Dals mismanagement and rampant drug addiction problem (allegedly supported by elements of government) has led to strong anti incumbency and while i'm not sure of AAP's chances, doesn't look like the ruling alliance will garner a majority as it did last time around.
What worry , BJP forming government in Bengal will be a miracle hell if they manage to even emerge as primary opposition it'll be nothing short of spectacular as these are essentially waters where they have had zero presence earlier . As far as punjab is concerned with massive anti incumbency it is no brainer that akalis are in for a rout let the congress and AAP fight it out , BJP has no presence there .
The takeaway though is we are headed towards a congress mukt bharat - if you see all coming assembly elections be it Bihar,UP,Bengal,Punjab,Assam or Kerala their chances look very very bleak .