Question: How old was the man for whom Āryabhaṭa numeration is named when he wrote Āryabhaṭīya?
Sentence (from "Āryabhaṭa numeration"): It was introduced in the early 6th century in India by Āryabhaṭa, in the first chapter titled "Gītika Padam" of his "Aryabhatiya".
Relevant evidence: No