Hello sagar.

As per your query.calcutta techaical school os a goverement school.it is affliated to WBSET.for more information about calcutta techanical school. please go through below given link. you would get a some information about cts-https://en.m.wikipedia.org/wiki/Calcutta_Technical_School

thanku

Hello,
Calcutta Technical School is affiliated to WBSCTE.It is involved in providing Diploma with respect to technical educationfor students.
Now the institute is an public type institute which states that it is a government institue.It provides various courses in the field of diploma engineering and also other courses to cater the needs of various students.It is among the oldest institutes for technical education.
Thank you.