Hi,
The registration for jossa counselling has started from 6th October 2020 and the last date of registration and choice filling is 15th October 2020.
After the registration process the seat allocation of round 1 will be displayed on 17th October 2020.
The candidate have to register before last date. The seats are allocated on the basis of rank obtained not first come first served basis.
So if a candidate with low rank fill the choices at an early date and other candidate with high rank at next day. It does not mean he will get the preference as he filled the form earlier.
However filling the application form and choices early is good. As you get registered without any technical glitch. Or if any problem pccurs you have time to resolve.
To have better choice filling and have an odea about your admission chances in various IITs you can use the jee advance college predictor tool. https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer
Hope it helps.
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