![Food vendors cook dishes on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)](http://www.ecns.cn/hd/2018/12/17/27581e6f0c74492893fb4104e075b681.jpg)
Food vendors cook dishes on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)
![Food vendors make cold drinks on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)](http://www.ecns.cn/hd/2018/12/17/04548715af6f44aeb49d875218e5222c.jpg)
Food vendors make cold drinks on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)
![Food vendors cook dishes on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)](http://www.ecns.cn/hd/2018/12/17/1abe5b1cf9fb4fff9eff0f0e318f068f.jpg)
Food vendors cook dishes on a street food festival held in New Delhi, India, on Dec. 16, 2018. (Xinhua/Zhang Naijie)