Dear aspirant,

Yes, it is possible to pursue BA LLB and Psychology both degrees combinely.

ICFAI Law School offers this kind of course in India which is popular.

There is also another College which offers this type of combination that is Symbiosis Institute.

For studying BA LLB course, Colleges will let you choose subjects in B.A like English,  Economics, Political Sciences, Psychology, History, etc. So, you can go with B.A  Psychology and LLB course combinedly also.

May this information helps you.

Best of Luck!!