Hello Mukesh,

JEE Main is a national level entrace examination for the engineering courses to get admission in the top colleges/institutes in India such as NITs, IIITs, GFTIs, and other private colleges which accepts the jee main scores. Go through the following link to get detailed information regarding JEE Main: https://engineering.careers360.com/articles/jee-main

While JEE Advanced is also a national level entrance exam for the candidates who wish to get admission in IITs across the nation. For the admission, one has to meet the eligibility criteria and merit list. Go through this link for complete information regarding JEE Advanced: https://engineering.careers360.com/articles/jee-advanced

All the best!