when the counselling of jee mains starts
It depends on which college you want to take admission.But if you are asking about counselling through jee mains in colleges like NITs/IIITs/GFTIs then it is conducted by JosAA and it is conducted in the month of June and continues till 6th round according to last year's data.
Good luck.

Related Questions
Know More about
Joint Entrance Examination (Main)
Answer Key | Eligibility | Application | Preparation Tips | Question Paper | Admit Card | Result | Accepting Colleges
Get Updates BrochureYour Joint Entrance Examination (Main) brochure has been successfully mailed to your registered email id “”.