
“Core Concepts in Differential and Integral Calculus” is a hardcover academic volume that explores mathematical concepts, methods, and their applications, the work of Lokesh Tandon. Each chapter builds on the last, guiding readers from fundamentals through to more advanced material. Aimed at mathematics students, educators, and researchers, it is published by Khushbu Publications, New Delhi, India under its Vidya Setu Publications imprint, and released in 2026.