Hi there,

There are many books available for Bachlor of technology in any branch. Also, as you have asked particularly about Information Technolpgy field. Below I have enlisted several books, check this out:

• Mathematical Methods by P.B.Bhaskara Rao, S.K.V.S. Rama Chary, M.Bhujanga Rao, B.S.Publications.
• Mathematical Methods by K.V.Suryanarayana Rao by Scitech Publications.
• Applied Physics – P.K.Palanisamy
• Textbook of Engineering Chemistry by C.P. Murthy
• Engineering Drawing, N.D. Bhat, Charotar.

Initially the subjects in first varies from univeristy to unoveristy but theses are the main ones. If you are asking aktu point of view, then the course varies every year.

Hope this answer helps you.

Also, check out this link: https://engineering.careers360.com/articles/what-are-best-books-for-gate-preparation

Thanks!!