Kolkata, July 27 -- The colour of the signage, on the top of the 14-storey state secretariat building Nabanna, was changed from blue to saffron on Monday.

"It is a part of maintenance and aesthetic work undertaken in some government establishments. There is no official notification on repainting the entire building," said an official.

Former chief minister Mamata Banerjee shifted the seat of power from the iconic Writers' Buildings in Kolkata to Nabanna in Howrah in October 2013, two years after coming to power. The entire building along with its signage on the terrace adorned the blue and white colour, a shade often associated with the Trinamool Congress (TMC).

While the state secretariat's colour remains the same, the signage colour ...