No, unfortunately, ISI Kolkata does not provide undergraduate courses on computer science. However, the proposal for starting B.Tech in computer science has been put forward but has not landed to any conclusion yet, and is being said that in the coming future this proposal may be accepted. 

For now, the present scenario of the undergraduate course in ISI Kolkata would just be B.Stat and B.Math. They both contain extensive teaching in computer programming as well as statistics. 

B.Math is a combination of computer science and pure mathematics and statistics. Whereas B.Stat contains lesser topics of computer science in their syllabus than B.Math.