Hey Anshika

It will be really helpful if you could tell me the year for which you need the reference book as well as your syllabus. Ex for first , second and third year students the books referred are in the following like

1. For physics please check the reference section as there they have prescribed the books: https://www.dauniv.ac.in/public/frontassets/syllabus/UGSyllabus2019-20/Physics_0.pdf
2. For Biology: https://www.dauniv.ac.in/public/frontassets/syllabus/UGSyllabus2019-20/ZOOLOGY_1.pdf
3. For Chemistry: https://www.dauniv.ac.in/public/frontassets/syllabus/UGSyllabus2019-20/CHEMIST150719REV_0.pdf In all of these check out the reference. All the best.