Central Railway is expected to save Rs 2,500 crore in electricity bill in five years after a new Power Purchase Agreement (PPA) with Ratnagiri Gas and Power Private Limited (RGPPL), a senior CR official said in Mumbai on Thursday.

"Minister of Railways Suresh Prabhu and Minister of State (Independent Charge) for Power, Coal, New and Renewable Energy and Mines Piyush Goyal have embarked on Mission 41K, which will lead to saving of Rs 41,000 crore in electricity bill for Indian Railways by 2025," the official said.