Hello aspirant,

The Special Round (spot round) counselling for CSAB started after the completion of JoSAA counselling. The round 1 allotment of Special Round was declared on 28th July and round 2 seat allotment of Special Round was declared on 1st August, 2019. The registration for CSAB Special Round was ended 27th July, 2019. Below is a summary of the counselling process - 

• CSAB Special Round registration : 25th to 27th July, 2019. 
• Payment of participation fee and choice filling : 25th to 27th July, 2019.
• Special Round seat allotment round 1 : 28th July, 2019.
• Accepting and surrender of allotted seats : 29th to 30th July, 2019.
• Special Round seat allotment round 2 : 1st August, 2019. 
• Institute reporting (physically) : 2nd to 6th August, 2019. 

You can also go through this link and checkout the details about CSAB Special Round counselling 2019 : https://engineering.careers360.com/articles/csab-special-round-for-nits-iiits-and-gftis

Good Luck !!!