New Delhi: The battle against black money will be incomplete without addressing the "free flow" of unaccounted money into the electoral process, ADR has said in a letter to the SIT probing unaccounted money of Indians abroad and called for ceiling on election expenditure.

In a letter to Justice (retd.) M.B. Shah, chairman of the Special Investigation Team (SIT) on black money, Jagdeep Chhokar, founder-trustee of the Association for Democratic Reforms (ADR), said that SIT's work cannot be completed unless attention is paid to the possible use of unaccounted money in the electoral and political process.