Hi Sridhar, you can't give JEE Advanced without writing JEE  Mains as JEE Mains is the qualifying exam for JEE Advanced and you need to get the cut off marks for your category in JEE Mains to be able to write JEE Advanced. The exam is of 360 marks,120 marks each for physics,chemistry and maths.For details on cut offs and trends https://engineering.careers360.com/articles/jee-main-cutoff

Hope it was helpful!!!Thank you.

Hello!

"no" brother you have to give jee mains forst and clear the cut-off of you category for jee advance paper .

you also check the other criteria for jee advance paper on below link.

https://engineering.careers360.com/articles/jee-advanced-eligibility-criteria

Hello Sridhar,

Sorry, No. You cannot do so. You will have to rewrite the Mains too. The IITs have taken this decision to make sure that the first time qualifiers do not suffer. Another reason is that, within a year, there can be a chance that you have forgot the concepts and probably can't even clear the Mains this year. 

Sorry for being too harsh in the last part. You might be intelligent, so please note that I was giving a general case.