Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c12.s2.t77.12

v2.c12.s2.t77.12

The enterprises of Jayasiṃha were not continued further. No one makes any use of his observatories and now they are mostly in a dilapidated condition. Jayasiṃha's work, Siddhānta Samrāṭ also does not appear to have come into use; nor have almanacs been rectified therefrom. The length of the year is still the same as before. And the same works which guided the almanac-makers before the time of Jayasiṃha continue to hold the field to this day. The fact that Jayasiṃha's works were not used even in Rajputana, is really very deplorable and thought-provoking.