Kolkata — City-of-Joy-turned to a city of anger and protests — has come out on the streets again to seek justice for the rape-murder of a young doctor that took place nearly a month ago. The protests will be reflected by the Indian community in 13 nations across the world. Two key foot marches are being held in posh south Kolkata — one by 58 school alumni associations and the other by film actors of Tollywood. The city’s artists have chipped in with road grafitti at key intersections.