Hello,
Counselling for first phase started from 10th of june - 15th of june . More counselling phase are only coducted when there is unfilled seats in many different colleges.Till now there is no such update for more counselling phase but you may keep checking the link provided below for official site and notice for more counselling phase.I hope it helped.
https://dte.assam.gov.in/resource/cee-2019-counseling
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