Railway Minister Suresh Prabhu on Wednesday said team work among ministers and bureaucrats of their departments was the key to successful delivery of good governance."Railways was able to achieve an all-time high capital expenditure because of the team work and united efforts and dedication of ministers and our officers. Railways undertook doubling of lines and electrification -- all with record performance," Prabhu said while inaugurating the two-day Civil Services Day function.On the continuity of the bureaucratic machinery despite political changes at the government level, he said: "This gives governance the flexibility to reorient itself to ensure the delivery, and the key to success is to work as a team where political leadership and the bureaucracy strive hard together to achieve common objectives of good governance."He emphasised the need for correctly identifying the deliverable targets and then gear up the government machinery at all levels to achieve them.Prabhu's statement comes a day after Delhi Chief Minister Arvind Kejriwal asked bureaucrats working with his government not to "play politics" with elected representatives.