Which Chinese traveller in ancient India wrote the diary called ‘Records of the Travels to Middle India’?

Chinese traveller 'Sungyun' was came to India in:

Which Chinese traveller visited India during Harshavardhana’s rules?

Which one of the following foreign travellers elaborately discussed about diamonds and diamond mines of India?

Who of the following Chinese travellers has given an account of the relationship of China with India during the reign of Chalukyas?

Ibn Battuta, the Moorish traveller, visited India during the reign of :