Dear aspirant hope you are doing well.

yes you can can qualify the jee main exam with the preparation of 2 month but it's hard to get a good government engineering college with qualifying marks in jee mains.

you can read the article, how to prepare for jee mains.

https://engineering.careers360.com/articles/how-prepare-for-jee-main/amp

knockout course for jee mains 2022:

• Knockout JEE Main 2022
• Personalized AI Tutor and Adaptive Time Table.
• Self Study Material.
• Live Classes(Classes will start from Last week of September)
• Unlimited Mock Tests and Personalized Analysis Reports.
• 24x7 Doubt Chat Support.

https://learn.careers360.com/knockout-jee-main-april/

Hope it's helpful

Thank you