The fish were found dead in the Gautam pond located on the back side of the Trimbakeshwar temple, which is around 30 kms from here.
The water body has got polluted as people throw puja waste in it, Lalita Shinde, one of the trustees of the Trimbakeshwar Devasthan Trust, said.
Shinde, who is also an environmentalist, along with another activist submitted a letter to the Trimbakeshwar police urging them to register relevant offences against persons responsible for polluting the pond.
The Trimbakeshwar temple is dedicated to Lord Shiva and houses one of the 12 'jyotirlingas' in the country.
The Simhastha Kumbh Mela, the largest congregation of any faith in the world held every 12 years, was organised here in 2015 when lakhs of sadhus and devotees took a holy dip in the Godavari river.
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