Megasthenes wrote the book 'Indica', which is one of the most important sources of information about ancient India and the Mauryan Empire. D. Neither 1 nor 2 Ans: C Ashoka's pillar inscriptions at Rummindei and Nigali Sagar provide direct evidence of his visits to Buddhist holy sites and patronage, affirming his faith. Minor Rock Edict I describes his gradual deepening of faith and efforts, not a sudden conversion.