QS is a reputed British education and career advice company, which earlier produced the rankings with the Times Higher Education. Since 2010, it has been producing them on its own.
The IIT Bombay's civil engineering department has been ranked 39th, while IIT Delhi's mechanical and aeronautical engineering has been positioned 43rd. Indian Institute of Science ranks 50th in materials science.
IITs have come as the only saving grace for Indian universities, which have taken a massive beating in the rankings released on Wednesday. Not a single university or department has made it to the top 200 altogether in 12 of the 30 disciplines covered in the rankings.
Important subjects without a single top-200 Indian institution include medicine, law, economics and education.
The best performances from Indian universities came in engineering as expected.
IIT Bombay, IIT Delhi and IIT Madras are all ranked in the global top 50 in at least one of the four areas of engineering: civil, mechanical, electrical and chemical.
Delhi University and JNU have made it to the top 100 in the world for English literature, while the only other Indian entry in this category are Jadavpur University and University of Kolkata both of which are among the top 151-200.
IIT Bombay's linguistic department is the only that made it in this category among the top 200.