: Certain problems are noted for requiring "brute force" or lengthy calculations rather than modern conceptual shortcuts.
Unfortunately, I couldn't find a legitimate free PDF download link for A. Das Gupta's Objective Mathematics. The book is copyrighted, and it's not available for free download on any website. However, you can try checking online marketplaces like Amazon, Flipkart, or Google Books to purchase a digital or printed copy of the book. a das gupta objective pdf free download
For those looking for official purchase options, you can find it at Bharati Bhawan Publishers Amazon India JEE Advanced : Certain problems are noted for requiring "brute