scoring a good marks in class 12 is quiet easy... u dnt hv to study lots of guides,refreshers and all... jst focus on ur NCERT u will definitely score a good marks..

Hello Friend,
There is no tricks to score a good marks in Board Exam rather than solving past 10 Years question papers of perspective board , you can buy the books of Oswal Publication or Arihant Publication (assuming that you are in CBSE Board).
It would be more than sufficient to score a decent marks in all the subjects you have.

Best of luck.

Link for buying those books are given below:

• For Science

10 Last Years Solved Papers - Science: CBSE Class 12 for 2019 Examination https://www.amazon.in/dp/9387660435/ref=cm_sw_r_cp_apa_i_ju.-BbJD07AFT

• For Commerce
• 10 Last Years Solved Papers - Commerce: CBSE Class 12 for 2019 Examination https://www.amazon.in/dp/9387660443/ref=cm_sw_r_cp_apa_i_Fw.-Bb2TZZ20H

Here are some preparation tips you can follow for the exam preparation:

Plan your schedule: Plan your schedule & Make your time schedule for study subject & topic wise & revision for the same after completing.

Note-making is an effective method:  Prepare short notes and list out the main points or draw diagrams that can help you to recall all the answers quickly. Revising the whole syllabus from scratch may seem impossible in the limited time available.
Study with understanding- The time which you are giving for your study it is necessary you should be devoted it with quality of study.
Understand the concepts while studying: Some students mug up theories without understanding the concepts. In this way, they are unable to answer a question asked in a different format.
Group study can help: Studying in a group can help you to tackle those difficult areas and learn faster.
Don't overstrain yourself- Don't be pressurise your self. Give the time for the study calmly. It will help you to memorize the topics.
Be confident- It is necessary that you should be confident for your preparation.

 

Good Luck!