Sudha had submitted that with as many as 407 canteens across the State and nearly 200 in and around Chennai, the role of Amma Unavagam cannot be overlooked. “With the access of Amma Unavagam being wide and easy, it is only axiomatic that the facility is used to not only serve hygienic food at nominal rates but also to improve the immunity of the public who depend on it for sustenance,” she said.