This is an important astronomical work composed by the 16th-century mathematician Gaṇeśa Daivajña, the son of Keśava Daivajña. Keśava Daivajña is the author of Grahakautuka and the actual text Grahalāghavasiddhāntarahasya it means 'The planet will count easily' he is also famous for Grahalāghava. The text contains 8 chapters includng; f.2b Madhyamādhikar, f.3 Sūryacandraṣṭātithyādhikāra, f.5b Pancatārasyaspaṣṭīkaraṇādhikāra, f.7a Candragrahṇādhikāra, f. 7b Sūryagrahaṇādhikāra, f.9a Pānādhikāraḥ, f.11 Māsagaṇātparvanayanādhikāra. The text is good in physical .