He is the only Indian player to score a duck and a century on debut.

Gundappa Viswanath is the correct answer. He made his Test debut against Australia at Kanpur in 1969, scoring a duck (0) in the first innings and a magnificent century (137) in the second innings. This unique duck-and-century on debut remains a rare feat in Test cricket history. Vengsarkar and Gavaskar did not achieve this.