Drishti IAS MCS Bharat Evam Vishwa Ka Itihas, Bhugol Evam Bhartiya Samaj 5th Edition & Samvidhan Evam Rajvyavastha, Governance, Samajik Nyay Tatha Antarrashtriya Sambandh 5th Edition | Mains Exam Books(Paperback, Hindi, Team Drishti)