Does Jawaharlal Nehru University, Delhi provide 3-year LLB?

No, Mathematics is not a mandatory subject for Guru Nanak Dev University, Amritsar's BBA+MBA integrated course. Candidates are required to only complete Class 12th education for fulfilling eligibility criteria.

Stream or subjects a candidate studied in Class 12th are irrelevant.

Yes, the college offers the course in full-time mode for three/four years. Admissions are based on CUET merit scores. Students have to register themselves on the official website and participate in the counselling process. The seats are allocated by the university on the basis of cutoff and merit sc

You may take BA English, Sociology, philosophy, Political science, Home science. So that you can shift to MA psychology.

Yes, candidates can get admission to Delhi University with 300 marks in CUET. But in such a case, the course options will be limited. Candidates belonging to reserved criteria will have chances of getting admission to less preferred courses and colleges.