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

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

The famous Chinese pilgrim Fa-Hien visited India during the reign of -:

Which Chinese traveller visited India during Harshavardhana’s rules?

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

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