The Congress has appealed to all political parties to support the candidature of Pranab Mukherjee for the post of President. Addressing mediapersons in New Delhi today, party spokesperson Manish Tiwari, also sought the support of West Bengal Chief minister Mamata Banerjee to back Mr Mukherjee's candidature.

In reply to a question, Mr. Tiwari said, the decision by former president Dr APJ Abdul Kalam not to contest the presidential polls must be right and based on his wisdom.