During Kumárapála's reign Hemachandra wrote many well known Sanskrit and Prakrit works on literature and religion. Among these are the Adhyátmopanishad or Yogasástra a work of 12,000 verses in twelve chapters called Prakásas, the Trisáshthisálákápurushacharitra or lives of sixty-three Jain saints of the Utsarpiní and Avasarpiní ages; the Parisishtaparvan, a work of 3500 verses being the life of Jain Sthaviras who flourished after Mahávíra; the Prákrita Sabdánusásana or Prákrit grammar; the Dvyásraya [618] a Prakrit poem written with the double object of teaching grammar and of giving the history of Kumárapála; the Chhandonusásana a work of about 6000 verses on prosody; the Lingánusásana a work on genders; the Desínámamálá in Prakrit with a commentary a work on local and provincial words; and the Alankárachúdámani a work on rhetoric. Hemachandra died in A.D. 1172 (S. 1229) at the age of 84. The king greatly mourned his loss and marked his brow with Hemachandra's ashes. Such crowds came to share in the ashes of the pyre that the ground was hollowed into a pit known as the Haima-Khadda or Hema's Pit. Kumárapála lived to a great age. According to the author of the Prabandhachintámani he was fifty when he succeeded to the throne, and after ruling about thirty-one years died in A.D. 1174 (S. 1230). He is said to have died of lúta a form of leprosy. Another story given by the Kumárapálaprabandha is that Kumárapála was imprisoned by his nephew and successor Ajayapála. The Kumárapálaprabandha gives the exact length of Kumárapála's reign at 30 years 8 months and 27 days. If the beginning of Kumárapála's reign is placed at the 4th Magsar Sud Samvat 1299, the date of the close, taking the year to begin in Kártika, would be Bhádrapada Suddha Samvat 1229. If with Gujarát almanacs the year is taken to begin in Áshádha, the date of the close of the reign would be Bhádrapada of Samvat 1230. It is doubtful whether either Samvat 1229 or 1230 is the correct year, as an inscription dated Samvat 1229 Vaishákha Suddha 3rd at Udayapura near Bhilsá describes Ajayapála Kumárapála's successor as reigning at Anahilapura. This would place Kumárapála's death before the month of Vaishákha 1229 that is in A.D. 1173. [619]