Engineering vs environment: now a debate over what to do with Gandhi Bridge, Patna Patna: according to reports, the Gandhi Setu in Patna is now a subject of debate among the engineering experts. The National Highways Authority of India [NHAI] took the decision recently to assume the responsibility for its rehabilitation only last fortnight when Union ministry of road transport and highways secretary A K Upadhyaya visited Patna. . Soon after the visit, an NHAI expert team visited Patna to take a close look at the condition of 29-year-old bridge and work out a plan for its overhaul/repair....