Explanation:

- Option 1: Cyrus Poncha

- Cyrus Poncha is a well-regarded squash coach in India but not a player who reached the top 10 in the PSA world rankings.

- Option 2: Ramit Tandon

- Ramit Tandon is an Indian squash player but has not entered the top 10 in the PSA world rankings.

- Option 3: Saurav Ghosal

- Saurav Ghosal is indeed the first Indian male squash player to enter the top 10 in the PSA world rankings and is widely celebrated for this achievement.

- Option 4: Mahesh Mangaonkar

- Mahesh Mangaonkar is also a talented Indian squash player, but he hasn't made it to the top 10 in the PSA rankings.