Is IELTS mandatory to get admission in NUS Singapore for Indian students for B.Tech CS?

It depends on the programme. TU Braunschweig does not have one IELTS requirement for all courses.

• German-taught programmes: You generally need German-language proof, not IELTS.
• English-taught programmes: You need to meet the programme's English requirement.
• Example: The CSE Master's

For admission to ACAP University College, Indian students should have to submit an English language proficiency score report. Indian students can check UG and PG English language requirements below- 

Indian students who want to take admission to Bangor University can be exempted from the submission of IELTS if they meet the following conditions-

• UG & PG: 65% in English subject for Central and State Boards. For students from Punjab, Haryana, Himachal Pardesh, Uttar Pradesh, IELTS or equivalen

For admission to the University of West London MSc in Artificial Intelligence course, Indian students should have IELTS score of 6.5 or above. In sub section of IELTS, minimum 5.5 is required. Students must have a Bachelor's degree is required (2.2 or above) in Computing or other STEM disciplin

For admission to the English-taught courses at TU Chemnitz, the students have to submit C1 (CEFR) English language proficiency scores. The minimum scores required are-