New Delhi : The Indian government is planning to build outer ring roads (ORR) in 28 major cities at an estimated cost of Rs 36,290 crore, Union Minister Nitin Gadkari said on Monday. Detailed reports for projects worth Rs 21,100 crore are under progress. The projects are a part of the ambitious Bharatmala initiative announced by the Cabinet last year, under which the government envisages development of 84,000 kilometres of national highways at an investment of Rs 6.92 lakh crore by 2022. “We plan to decongest all major cities under Bharatmala. We have plans to build ring roads at an estimated cost of Rs 36,290 crore. Formulation of detailed project reports (DPRs) for projects worth Rs 21,100 crore are in the process,” the Road Transport, Highways, Shipping, Water Resources and Ganga Rejuvenation Minister told the PTI.