Ugardanti (Punjabi: ਉਗਰਦੰਤੀ) is a composition which is present only in Dasam Granth Bir Patna Sahib that was composed by Guru Gobind Singh. There are 6 couplets(called Chakka(ਛਕਾ) ) of this bani ending with Chopai.
Ugardanti, a feminine term, is made of two terms:
- Ugar  means Dangerous/Strong/Fierce/Intense.
- Danti  It also means Tooth against Tooth.  means Tooth.
Ugardanti means strong and fierce teeth which destroy Sins, lies, Negativity, Wickedness, Cowardliness and bring worse people on way.
In Gurmat vision the term is explained as follows :
- In Guru Granth Sahib, on page 1082, Guru Nanak said that The Protector who tears apart demons with His teeth, the Upholder of the earth. . Guru Ram Das also explained the Ugar ace, fierce face of god, One whose mind is satisfied with the Lord that servant is known throughout the four ages, in all four directions. If some sinner speaks evil of him, the Messenger of Death chews him up... This is Ugar Face of Hukam, which saves Saintly people and destroy evils.
- In Dasam Granth, Guru Gobind Singh mentioned in Akal Ustat that All those Prophets, saints and hermits, who came into being, were all ultimately crushed under the grinder tooth of KAL.29. 
Ugardanti is attributed as Will power/Command of God i.e one aspect of Akal Purakh, which have power to crush everything in the world. This is popular phrase "to come under jaws","Out of the jaws of death", these jaws are attributed as Hukam. For Eg. Earthquake in haiti killed thousand of Innocent people, Tsunami occured and ate up thousand of people. This is Ugardanti Face of God.
Gurmat is the command of Nirankar/God. Gurmat has power to cut all vices, So Gurmat itself functions as Ugardanti.
- In Bansavalinama, written in 1769 CE, author, Kesar Singh Chibbar, explains and quotes a few passages from the rare composition Ugardanti, which was written by Guru Gobind Singh Ji. 
- An opinion existed that Ugardanti bani was composed by head Priest of Patna Sahib, Bhai Sukha Singh which later on added in Dasam granth Patna Sahib Bir, but as Bhai Sukkha Singh added many banis of Guru Gobind Singh after it so this opinion is not possible, moreover work style, terminology and concept of Ugardanti is almost similar to other compositions of Guru Gobind Singh like Ath Pakhyan Chariter likhyaty, Charitar 1,  and other Chandi Chariters.
- The ‘Ugardanti Bani’ is part of Akali Nihang and Namdhari daily liturgy.
- Acc. to Nihung Tradition, This bani was given by Guru Gobind Singh to inspire some of his weaker followers (Sikhs), so that they would be able to fight against tyranny.
- Ugardanti was composed, after creation of Khalsa Panth.
Manglacharan is starting of Bani. The Bani starts with:
ੴ ਵਾਹਿਗਰੂ ਜੀ ਕੀ ਫਤਹਿ ॥
ੴ वाहिगढ़रू जी की फतहि ॥
The Lord is one and the Victory is of the Lord.
ਸਰੀ ਭਗਉਤੀ ਜੀ ਸਹਾਇ ॥
सढ़री भगउती जी सहाइ ॥
May the Bhagauti Helps
This suggest the interpretation will fully on base of Gurmat.
The bani Ends with following node:
ਸਰੀ ਇਤਿ ਗੋਬਿੰਦ ਸਿੰਘ ਵਿਰਾਚਿਤੇ ਸਰੀ ਭਗਵਤੀ ਛੰਦ ਖਸਤਮੰ ਸਮਾਪਤੰ ਸਤ ਸਭਮ ਸਤ || ੬ ||
शढ़री इति गोबिंद सिंह विराचिते शढ़री भगवती छंद खशटम समापढ़तम सत सढ़भम सत || ६ ||
Bhagvati Chand Narrated by Guru Gobind Singh Completed with Benediction.
Guru Gobind Singh himself mentioned his name at last of this Composition.
- ^ a b Mahaankosh : Bhai Kahn Singh Nabha
- ^ A Sanskrit-English dictionary
- ^ Baba Nanak: Guru Granth Sahib
- ^ RamDass:Adi Granth:Page 998
- ^ Guru Gobind Singh: Dasam Granth
- ^ Baba Nanak: Guru Granth Sahib Page - 22
- ^ a b Bansavalinama Dasan Patshahian Ka - Kesar Singh Chibber Cite error Invalid
<ref>tag; name "ugar_bansali" defined multiple times with different content; $2
- ^ Bhagvati Chand 6 - Line 17