History of Dasam Granth is most referred book as it contains dates and events are sketchy and brief. This book does not mention about compilation of Dasam Granth but it does refer to writings inside dasam granth which includes Bachitar Natak written at Anandpur, Krishna Avtar written at Paunta Sahib. The book mentioned various lines from 33 Sawaiyey, Shastarnam Mala and terminology used in Dasam granth. Among several valuable works John Malcolm completed Sketch of Sikhs in 1812 and mentioned about Dasam Granth which converted many to Sikhism to fight against thranny. The approach of Malcolm is biased as he attributes Devi worship episode
Adi Shankara ("Bhāṣya"), original philosophical expositions ("Prakaraṇa grantha") and poetry ("Stotra"). However most of these are not authentic works of Adi Shankara and are likely to be works of his admirers or scholars whose name was also Shankaracharya. Piantelli has published a complete list of works attributed to Adi Sankara, along with issues of authenticity for most. Adi Shankara is most known for his systematic reviews and commentaries ("Bhasyas") on ancient Indian texts. Shankara's masterpiece of commentary is the "Brahmasutrabhasya" (literally, commentary on Brahma Sutra), a fundamental text of the Vedanta school of Hinduism. His commentaries on ten Mukhya (principal) Upanishads are