Hello Dinesh !

As per CBSE board guidelines for internal assessment for class 10th you will have to give a 80 marks board exam and 20 marks internal assessment. The internal assessment will be at the end of your year.

For knowing the definite structure of the internal assessment you will have to ask your teachers or your seniors in the school as CBSE has provided flexibility in choosing the methods of internal assessment to schools. For more details related to assessment scheme for class 10 given by CBSE you can visit: Assessment scheme (http://cbseacademic.nic.in/web_material/CurriculumMain2Sec/Curriculum_Sec_2021- 22.pdf)

I Hope you have understood it!