India, Sept. 11 -- Bengaluru's next big metro expansion, Phase 3, better known as the Orange Line, will take longer than expected to see the light of day.

The Bangalore Metro Rail Corporation Limited (BMRCL) has revised its plan to incorporate double-decker flyovers along certain stretches, pushing the completion deadline to May 2031, at least a year later than the original schedule, The Hindu reported.

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The integration of these structures is aimed at easing future road congestion but comes at a cost. Officials estimate the design change will increase the project's overall budget by around 5% and demand more land for wider stations and road-...