Lucent Objective History App is designed and built on the basis of Lucent Book. The Content is taken from Lucent Objective GK Book. This App is helpful fur SSC, RRB, Railway Group D, NTPC, Loco Pilot, UPSC and other state level exams. This App Covers the following sections, which are available offline for user. A. प्राचीन-इतिहास 1) हड़प्पा / सिन्धु सभ्यता (2500 ई० पू०-1750 ई० पू०) 2) वैदिक संस्कृति (1500 ई० पू०-600 ई० पू०) 3) महाजनपद काल (600 ई० पू०-325 ई० पू०) 4) धार्मिक आंद