Khan Sir Vastunishth Samanya Vigyan (15000+ Questions) – Chapter Wise Previous Year Questions (1990-2021) – RBD Publication old book

Science section ki taiyari ke liye Khan Sir (RBD Publication) ki ye book ek “Master Guide” hai. Ismein pichle 30 saalon ke (1990-2021) sabhi mahatvapurn prashnon ko Chapter Wise format mein diya gaya hai, jisse practice karna bahut asaan ho jata hai.

Is book mein Physics, Chemistry, aur Biology ke sath-sath Paryavaran (Environment) ko bhi cover kiya gaya hai. Chahe aap Railway ki taiyari kar rahe hon ya UPSC/PCS ki, Khan Sir ka ye collection aapko har exam mein edge dilayega. Halanki ye old book hai, lekin science ke pichle saalon ke questions aur Khan Sir ki approach hamesha relevant rehti hai.