can anyone please suggest the books to be followed for step 3 besides MTB. and u world.

I am in the same situation.
MTB-3 and UW seem to be the standard.
Some people do kaplan videos or lecture notes if they've time.
My feeling is that FA is more comprehensive and possibly better than MTB-3. To be honest MTB-2 for my step 2 CK was not that helpful.

Any suggestions from people who have done the exam, please.