Hello There ,

Since you have not mentioned the examination , i'm assuming you're asking about JEE Mains .

According to expert opinions the level of difficulty level of the paper was moderate.  Most  candidates found Physics as the most difficult section , while Difficulty level of Maths section was easy to moderate. Some of the topics asked in the section were Integration, Complex numbers,etc .

Chemistry was the easiest section and had many direct questions from the NCERT. Some of the topics asked were Coordination compounds, Chemical Bonding, etc. Maximum questions in the section were from Organic Chemistry.

More more information you can check the detailed careers360 review -

https://engineering.careers360.com/articles/jee-main-paper-1-analysis-2020-september-3-shift-1-2

use the careers360 college predictor to predict college according to your rank -

hope it helps and all the best .