One of the strongest sections deals with the hydrogen atom. Chandra meticulously solves the radial and angular parts of the Schrödinger equation, introducing quantum numbers (n, l, m) and atomic orbitals. He explains the physical significance of real vs. complex orbitals, which is crucial for chemistry.
This is precisely the gap that A.K. Chandra’s work aims to fill. introductory quantum chemistry a k chandra pdf