Shakuntala Bharti in a letter sent yesterday to Senior Superintendent of Police (SSP) Dharamvir Singh said an anonymous caller has warned her not to take any further initiative in the ongoing drive.
On being asked about the letter, the SSP said he has received it and efforts are on to trace the identity of the anonymous caller through surveillance.
The issue of environmental pollution came to the forefront last weekend when certain localities on the outskirts of the city, particularly in the Banna Devi, were faced with the problem of air pollution and the locals complained about the foul smell.
Mukhya Nagar Adhikari Shailendra Singh said a special task force has been constituted to tackle this menace.