First of all learn who is bidding and who is executing projects. Rail board retires are being hired by pvt firm for execution.GMR hired lohani sahab(he worked with air india & indian railway).same goes to l&t . Big indian company want pie of this . 30000 crore project is intended by indian railway. Alstom is already in india. Medha plant coming in telegana.some they hv plans for private leasing for freight like amazon doing for sealdah rajdhani.why railway want to complete electrification in existing route ?
Answer - carbon neutral wont be possible before 2030. As some route upcoming or guage conversion will be on diesel for sometime.electrification will help railway in executing.