As you have asked about the date for publication of rank list of the Indian Institute of Space Science and Technology (IIST) for admission to its undergraduate programme, I am giving you information about it

IIST Rank List shall be prepared on the basis of JEE.
Rank list of IIST Admissions will be published only for eligible candidates who have registered online for the IIST B.Tech and Dual Degree admissions.

The Central Board of Secondary Education shall compile All India Ranks on basis of JEE Main score, and normalised class XII score.

It is important for IIST aspirants to understand that whereas rank list is prepared on basis of JEE Main, qualifying cut offs need to be satisfied on basis of JEE Advanced marks.

Publication of IIST Admission Rank list and Counselling details
29 Jun 2016

IIST Admission Rank list will be generated only for those candidates who have registered online for the admission to IIST
Rank list will be based on their position in the All-India Rank list (including category rank) prepared and published by Central Board of Secondary Education (CBSE).

CBSE prepares All-India rank list giving 60% Weightage to the score in JEE (Main) examination and 40% Weightage to the normalised score in Class 12th qualifying examination and

It is expected to be published in the last week of June, 2016.