There is a square open place there , surrounded by walls. My wife and I went on the first floor of a building, and saw the event from there. Everywhere colour was being thrown, blue, green, yellow and red. The men folk were in the centre of the square, and the womenfolk tore the upper garments of the menfolk, dipped them in coloured water, which was all around, and beat the menfolk with those torn clothes. Perhaps this was symbolic of women returning what they got from their men during the rest of the 364 days in the year !