KOLKATA: A survey carried out by Kolkata Municipal Corporation (KMC) has revealed that the street food in city is safe , though the vendors in some places need to be careful about using spices, edible oil and other ingredients.The survey has also said that some vendors in the city should maintain proper hygiene .A KMC health department team was assisted by an NGO to examine the quality of street food in the city. They chose 1,767 street food vendors from 10 different areas, including the central business district.The month-long survey focussed on three categories of street food vendors — those selling meals come in the first category, while others selling snacks in morning and evening fall in the second category. The fruit juice or soft drink sellers come under the third category.The survey has classified the food vendors in accordance with the quality of the food they serve. Of 1,767 vendors, 37 have been branded as “excellent” and given the 5-star status.Other 326 vendors got the 4-star status, while 1,082 vendors were accorded a 3-star status.The rest 319 vendors were given a fair grade but they were asked to improve the quality of the food and its hygiene, said Atin Ghosh, member, mayor-in-council who oversees the KMC health department.Ghosh added that the KMC team collected food samples and decided on the status after a laboratory testing.For instance, the vendors in areas like Hatibagan, Shyambazar, Kalighat and Hazra got the 5-star status. The food items tested for the survey in these areas include singara, kachuri, south Indian and Chinese dishes.The vendors who were given the 4-star status were from the areas like Kalighat, Rashbehari Avenue and Jadavpur.Some food vendors selling snacks, biriyani, khichdi and sweets at BBD Bagh, Strand Road or Netaji Subhas Road have been lauded for the quality.Besides, the meals served to office-goers in the CBD were also praised. However, the areas where the KMC team found poor hygiene and quality of food include Gariahat, Chitpore, New Market and Sealdah.