 Other Surya temples named after Arka include Uttararka and Lolarka in Uttar Pradesh, and Balarka in Rajasthan.Another 10th-century sun temple ruin is in Bahraich, Uttar Pradesh named Balarka Surya Mandir, which was destroyed in the 14th century during the Turkish invasions.Surya as an important heavenly body appears in various Indian astronomical texts in Sanskrit, such as the 5th century "Aryabhatiya" by Aryabhata, the 6th century "Romaka" by Latadeva and "Panca Siddhantika" by Varahamihira, the 7th century "Khandakhadyaka" by Brahmagupta and the 8th century "Sisyadhivrddida" by Lalla.