"I have been made convenor. I have written a letter to Prime Minister Narendra Modi saying I would prefer to be a member, not convenor of the task force to implement Swachhh Bharat Abhiyan," he said here.
The National Institution for Transforming India (NITI) has notified three sub-groups as decided during the first meeting chaired by Modi.
Madhya Pradesh Chief Minister Shivraj Singh Chouhan will chair the sub-group on centrally sponsored schemes (CSS), Tripura chief minister Manik Sarkar on skill development and Siddaramaiah on Swachh Bharat.
Siddaramaiah said he has requested Modi to replace him with someone else as he is busy.
"Please make someone else, not me. I want to be a member. I don't have time," he said.
Swachh Bharath sub-group will decide on institutional mechanisms and technological inputs for ensuring that commitment to Swachh Bharat becomes a part of our life in perpetuity.