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The Tank Kshatriya/ Chhimba are an ancient large group of the Kshatriyas, nowadays popularly known as the Tank Kshatriya, Tankshatri, Tonk Khatri/Tank Khatri/Taunk Khatri/Taank Khatri or Kshatriya Tank  community in India .
Tank (Sikh) 
Bhai Mohkam Singh performing the Amrit Sanskar Ceremony on 30 March 1699
In Sikhism castism is banned after Ceremonyof Amrit Sanskar on 30 March 1699. Looking dignified and handsome, Mohkam, a Tank Kshatriya Sikh, explained to his buyers why his materials were considered by some to be the most beautiful in India and what he felt was behind his success. “First, my family has always been faithful to the teachings of our faith. I recite these words from our founder, Bhagat Namdev, each day before I start work. ‘Let mercy be the cotton, contentment the thread, continence the knot, and truth the twist. Oh priest! if you have such a thread, do give it to me. It will not wear out, nor get soiled, nor be burnt, nor lost. Says Nanak, ‘Blessed are those who go about wearing such a thread.’ You see we Chhimbas were given a blessing in the knowledge of using dyes and creating beautiful art work on textiles. Today with modern techniques many of us continue to earn a living in the fabric business. Still, the most important thing in life is how we live and put into practice the words of our Sikh Gurus.”
Tank Kshatriya (Hindu and Muslim) 
The Hindu Tank Kshatriya people live mainly in India’s northern state of Himachal Pradesh. Though there are Muslims and Hindus among them, most are Hindu. They speak the regional dialect of Western Pahari Hindi, and standard Hindi as a trade languag
See also 
- Adi Sri Guru Granth Sahib pages 733,1375.
- Mahan Kosh, Bhai Kahn Singh Nabha page 492.
- Sri Guru Granth Sahib Kosh, Bhai Vir Singh page 262.