For Psychology, Mr. Mukul Pathak is the only one. I believe almost every student of Psychology in CS preparation avails of his guidance in one form or another. I have immensely benefited from being his student and he is more than just a teacher. He has been a mentor and friend too. I am not suggesting that every student should join his classes. But this is one of the ways I can thank him for his invaluable support and guidance.
NCERT 11th & 12th
Mr. Mukul Pathak's class notes.
1.Focus on conceptual understanding.
2.All chapters of paper 1 are extremely important and interlinked. So do not leave any unit.
3.Practice answer writing in the prescribed time limit and try to get them evaluated by someone competent.
4.Make synoptical notes for every topic for easy reference. That helps in the final revision.
5.For paper 2, you need to use some daily life examples and put them in your answer.
Also try to add some theoretical aspects of paper 1.