GANDHINAGAR: Gujarat's dream of becoming the 'gas gateway' to North India received strong financial backing worth Rs 4,500 crore from a dozen-odd nationalized banks on Monday, when state-sector company, Gujarat State Petronet Ltd (GSPL), signed up an agreement with the consortium led by Bank of India to fund the 2,200-km-long gas pipeline project from Mehsana to Jammu, via Bathinda in Punjab. The project will take three years to complete.