"Shimla has performed phenomenally well and secured 47th rank out of 500 cities, but the matrix drawn for such a survey is faulty and did not help the mountain cities.
"In fact Shimla ranked first among cities with population of two lakh to 10 lakh and happens to be in the fourth position in the entire northern region," he said.
Pointing out that the cost of infrastructure development was almost four times in the hills as compared to plains posed a different challenge, Pawar said.
Further, in such a situation it is difficult to sustain door-to-door garbage collection for solid waste management as the vehicle would not reach every house warranting deployment of larger number of people, Pawar said.
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Although, Shimla cannot match cities like Chandigarh but it has achieved almost 100 per cent door-to-door garbage collection, he said.
The Urban Development Ministry had commissioned the survey for 500 cities and towns with population of 1 lakh and above in January and February this year. The results, however, were available for 434 cities and towns which were announced on Wednesday.