Why is Jodphur called the blue city ?

Jodphur, second largest city in the state of Rajasthan is also called the blue city

some say the blue colour is associated with the Brahmins, Indias priestly caste, 

and the blue houses of the old city belong to families of that caste

There's also the argument that termites are the real reason !

nevertheless it's said that it's all Indigo, the natural dye that makes this city blue

first glimpse of the city from above

it sure reminds me of Greece

different shades of blue

amazing colours of India