JEE main is a national level exam for admission to IITs, NITs, CFTI, IIIT etc.
Therefore, it is available in several languages including hindi and english. For Hindi notes you may consider the coaching material of any reputed coaching centre, and ask them for JEE main notes in Hindi language. Top coaching centres have multilingual course materials.
As such I should not take name of any institute, but all top 5 JEE coaching institutes offer coaching course materials in Hindi as well as English.
You may also search on internet about JEE Coaching material in Hindi, or see hindi videos on YouTube regarding same.
Hope this helps.
IIT/JEE 2020 Online Preparation
Crack JEE 2020 with JEE Knockout Program, If you Do Not Qualify- Get 100% MONEY BACK