The housing and urban affairs ministry has so far announced 99 cities for Smart Cities Mission.
In January 2016, 20 cities were announced, followed by 13 cities in May 2016, 27 cities in September 2016 and 30 cities in June 2017. On January 19, nine cities were chosen in the latest round of the Smart Cities Mission.
At an event here, Puri said two years is a short duration in terms of urban development life-cycle where transitions take place over decades.
He said as on January 17, there were 2,948 projects worth Rs 1.38 lakh crore at various stages of implementation, while 189 projects worth Rs 2,237 crore have been completed.
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"Smart Cities Mission is setting a new benchmark in terms of project implementation... This remains one of the fastest ever project implementations at this scale and geographic spread in urban sector," Puri said.
He said urbanisation in India, or anywhere in the world, brings with it a host of challenges, from pollution to lack of civic amenities like drinking water, sewage, and electricity.