The answer to your question may vary a lot from university to university.
There is surely a Blend of Maths, Chemistry, and Computers in BSc Degrees, but with requirement of basic know-hows from other disciplines as well.
Especially talking of University of Delhi ( DU ),
But, in my opinion, the following courses require the knowledge of Chemistry, Maths and Computers at the same level to an extent (BSc), along with some knowledge of biology or psychology in some cases :
- Biomedical Sciences
- Materials Science
- Teacher Training