Jainism teaches the concept of "ashuchi" (impurity or uncleanliness) in the context of spiritual and ethical purity. Rivers or water bodies that are filled with impure substances or are used for the disposal of waste are considered "ashuchi bhareli" (filled with impurity).

In Jain scriptures, there is no specific river named as "ashuchi bhareli nadi." Instead, the emphasis is on the general principle that one should avoid contact with impure substances to maintain both external and internal purity. Jains are encouraged to use clean water for daily rituals, personal cleanliness, and religious activities, and to avoid polluting natural resources.

If you are looking for a specific reference or story involving a river in Jain literature, please provide more details. Otherwise, remember that in Jainism, the focus is on the purity of mind, speech, and body, rather than naming specific impure rivers.