My jee rank 367623, (sc rank 21000) can I get college through JAC Chandigarh? If yes then which college (civil engineering)

It depends on Many factors like how many students are applying, no of seats, difficulty of exams and other too.
They have homestate quota soo if you are permanent resident , there are chances that you might get Chandigarh college of Engineering and Technology and PEC University of technology, more chance are for electronics and civil branch in both.
And if don't qualify for home state, there are chances for university institute of Engineering and Technology, hoshirapur, any branch in it because they have all India quota.
Hope this helps you.
Thank you and best wishes for your future endeavors