"I downloaded a free PDF from a random site. It had pages from a 1988 edition mixed with missing diagrams. For my semester exams, I finally bought the Kindle version—total game changer. The verified PDF was clean, searchable, and worth ₹450." –
If you prefer a digital workflow, there are reliable, authorized, and secure methods to access a verified digital copy of A Textbook of Optics : optics by brijlal and subramanyam pdf verified
: Many universities provide the PDF for educational purposes. For instance, a verified copy is hosted by the Mohanlal Sukhadia University (MLSU) . "I downloaded a free PDF from a random site