An “exhaustive” list of witnesses, which includes former Prime Minister Atal Bihari Vajpayee and former Finance Minister P Chidambaram, was on Tuesday placed before the JPC probing the 2G spectrum allocation scam, but a decision whether to call them was deferred.

The list is likely to be finalised on July 10 with JPC members agreeing in principle that some politicians and corporate honchos who are part of the telecom sector will be summoned.

As soon as the Joint Parliamentary Committee (JPC) met this morning, chairman P C Chacko placed before the members an exhaustive compilation of witnesses suggested by members over the last one year.

He said since he has not applied his mind on the witnesses who actually need to be called, he would like the issue to be deferred so that he can consult individual members and prune the list of witnesses.

The list also reportedly includes the name of P Chidambaram who was the Finance Minister when 2G spectrum was allocated. Among the politicians, the list also includes the name of former Telecom Ministers A Raja, Jagmohan, Arun Shourie and Sushma Swaraj, now Leader of the Opposition in the Lok Sabha.

JPC had then decided to draw up a list of the witnesses who could be called. The list has to be endorsed by the members before anyone could be summoned. The June 26 meeting of JPC was postponed as the differences among the members persisted. Officials from ED deposed before the committee today to explain the progress made by them in the 2G spectrum scam probe.