Bachittar Natak (or Bachitar/Bichittar) (ਬਚਿੱਤਰ ਨਾਟਕ, literally Resplendent Drama) is from Dasam Granth, ang (page) 94 to ang 175 of the 2326 ang. It is generally attributed to the tenth Sikh Guru, Guru Gobind Singh.
Although the word "Natak" means "drama" in Punjabi, this is no drama. The writer has outlined the circumstance and history of the time and how great courage and strength was required to overcome the many hurdles that were upon the community.
It starts with a praise of the God "Akal Purukh". It then gives a genealogy starting from King Surya, King Raghu, King Aja, King Dasrath to Lord Rama and his two sons Lav and Kush. It gives the author's own biography and includes the Battle of Nadaun, Husaini battle and the arrival of prince Muazzam in the Punjab. It continues up to AD 1696.
It is written in early Braj bhasha with some Apabhramsha influence. Several translations in Punjabi, Hindi and English exists.
The life's story of Guru Gobind Singh is further told by the court-poet Sainapat, who is also believed to have translated the Chanakya Niti at the Guru's behest. Sainapat finished his Sri Gur Sobha in AD 1711, three years after the death of the Guru. Other early sources are Koer Singh's Gurbilas Patshahi, written in 1751 and the Bansawalinamah by Kesar Singh Chhibbar (1767).
There is some controversy regarding the authorship (whether this was really written by Guru Gobind Singh) since some of the content and style does not match his hard line conservative views of some Sikh scholars Sikhism Guru Granth Sahib (refer to analysis in the external links section).