Sonia was scheduled to address campaign rallies in Nandurbar and Dhule in north Maharashtra and another one in Mumbai.
The Mumbai rally will be addressed by Congress vice president Rahul Gandhi. Nationalist Congress Party (NCP) president Sharad Pawar will also be present. At the Nandurbar and Dhule rallies, the Congress president has deputed Ghulam Nabi Azad and Raj Babbar, the sources said.
Congress leader Mohan Prakash, Chief Minister Prithviraj Chavan and MPCC President Manikrao Thakre will also be present at all the three rallies.