Accusing Home Minister, P Chidambaram of having a role in the 2G-spectrum scam, Bharatiya Janata Party demanded his resignation. Senior BJP leader, Murli Manohar Joshi in Bhopal on Sunday alleged that Chidambaram had a key role in the two multi-billion dollar scams since he was the Finance Minister during 2006-07.Central Bureau of Investigation (CBI) has charged former Telecom Minister A Raja of having received bribes in connection with a multi-billion dollar telecom corruption scandal to the tune of Dollar39 billion that rocked governance and investor sentiment in Asia's third-largest economy.