Hello,

Both the entrance exams are hugely different.

JEE Main is conducted by the National Testing Agency (NTA) for admission to various undergraduate engineering and architecture courses in NITs, IIITs and other CFTIs.

On the other hand the NEET exam is an entrance examination for admission to undergraduate medical courses and dental courses in both government and private medical or dental colleges across the country.

When it comes to the comparison based on the toughness, both the entrance examinations are tough as they are National level exams and the competition is high. But still JEE is a bit tougher than NEET, paper-wise. However, the large competition in NEET and comparatively fewer seats makes it difficult to secure admission in a good medical college.

My suggestion to you would be to find the field which interests you more, and prepare well for it.

Good Luck