According to the trend, the questions asked in the UPSC IAS prelims exam were moderate to tough in their difficulty level. The UPSC has frequently asked questions on Modern Indian History. It has also asked some direct question from NCERT books also. To tackle the History in General Studies Paper I of UPSC IAS prelims, the aspirants require knowing the respective significance of different topics in Ancient like Indus Valley Civilization, Vedic Period and Mauryan and Gupta period, various Kingdoms, Delhi Sultanate, Mughal Empire etc. Modern Indian History requires thorough and wide attention for both UPSC IAS prelims and mains exam.