Under the Indian Copyright Act, 1957 (amended 2012) , copyright subsists for 60 years after the author’s death. Both authors are presumed deceased (no recent publications post-2010), but the publisher, New Central Book Agency (est. 1957), remains active.
Ghosh and Chakraborty contains up to 50 solved examples per chapter. Do not just read them—hide the solution and solve them yourself. Every unsolved problem in the back is a variation of a solved example. analytical geometry by ghosh and chakraborty pdf
Whether you buy the physical Ghosh and Chakraborty or find a legitimate PDF, here is how to use it effectively: Under the Indian Copyright Act, 1957 (amended 2012)