The conducting IIT (such as IIT Guwahati for GATE 2026) typically hosts official question papers and answer keys for recent years.
For anyone tackling , solved papers are arguably your most potent study tool. They aren't just for practice—they’re a "cheat sheet" for understanding how the examiners think. Where to Find Free Solved Papers
You don't always need to buy expensive books to get quality solutions. Several reputable platforms provide past papers (often from 1990 to the most recent 2025/2026 sessions) for free: