With reference to Indian history, consider the following pairs: Historical person Known as

1. Aryadeva Jaina scholar
2. Dignaga Buddhist scholar
3. Nathamuni Vaishnava scholar How many pairs given above are correctly matched?

Let's analyze each pair:

• Aryadeva (3rd century): He was a Mahayana Buddhist monk, a disciple of Nagarjuna, and a Madhyamaka philosopher. Therefore, the pair "Aryadeva - Jaina scholar" is incorrect.

• Dignaga: He was an early 6th-century Indian Buddhist monk and the founder of Indian logic (Hetu Vidya). He was born near Kanchipuram. Therefore, the pair "Dignaga - Buddhist scholar" is correct.

• Nathamuni (Sriman Nathamuni): He was a Vaishnava theologian who collected and compiled the Nalayira Divya Prabandham. Therefore, the pair "Nathamuni - Vaishnava scholar" is correct.

In conclusion, only two pairs (Dignaga and Nathamuni) are correctly matched.

Hence, the correct answer is option C.