A new bone of contention emerged in West Bengal between state government and the Metro rail authority. The newly started East West metro corridors have been erected on pillars. Metro rail authority started to paint those with yellow and white colour which irked Chief Minister Mamata Banerjee. In West Bengal state government made a blue and white colour as symbol of TMC government. All the state government buildings and institutions are painted with blue and white colour replacing old red colour which was symbol of left front government for long 34 years. State government recently wrote to Metro rail authority to paint the pillars keeping semblance with the state government color. In the country only Kolkata metro is under Railway as desired by the then Rail Minister Mamata Banerjee. The file is now pending with Union Railway minister to take a call on the decision.