R Priya of Dravida Munnetra Kazhagam (DMK) was sworn in as the mayor of Chennai on Friday. The 28-year-old is the first Dalit woman, and the third-ever woman to occupy this post since the Greater Chennai Corporation was formed, 334 years ago. Both, the current Chief Minister MK Stalin and current Health Minister Ma Subramanian, have served on this post at some point in their political careers.