Here is why:
by Krishna Prakashan is a cornerstone textbook specifically tailored for undergraduate (B.Sc.) and postgraduate (M.Sc.) students across Indian State Universities. Known for its accessibility and rigorous problem-solving approach, it is a preferred resource for both academic exams and competitive tests like the CSIR-NET , IAS, and PCS. Key Features and Pedagogical Approach
Principal, Gaussian, and geodesic curvatures, as well as the second fundamental form.
Or, better yet: Use the Krishna book only for solved problems, but learn the actual geometry from a free, legal open-source text.
