The 'Sukhet Model', an innovative method converting dung and waste into vermicompost, was first implemented in the state of __________.

The 'Sukhet Model' is a localized waste-to-wealth initiative first implemented at Sukhet village in the Madhubani district of Bihar. Under this model, garbage and cattle dung are collected from houses, and in return, money or LPG cylinder refills are provided to the villagers, while the waste is converted into vermicompost.