Lawyers are also arguing about the way in which Mr. Kasab, who is supposed to have no access to newspapers or television, heard about the Pakistani government’s admission that Pakistani citizens were involved in the attack. Mr. Kasab said Tuesday that guards outside his cell told him about the development, which prompted him to confess.

The prosecution asked the court to accept into the record a portion of Mr. Kasab’s admission of guilt on Monday related to the killings at a busy Mumbai train station, where witnesses saw Mr. Kasab and an accomplice mow down dozens of people, but requested that it not admit other aspects of the confession that, it asserts, were filled with “lies and contradiction.”

The prosecutor, Ujjwal Nikam, alleged that Mr. Kasab had deliberately played down his role in the attacks to avoid the death penalty and help his Pakistani counterparts who will be tried across the border. He said any evidence presented in court here could make its way to court there, an argument that Judge Tahilyani discounted.

Later in the hallway, he told reporters that the case would now last for just one more month and that the prosecution would show why Mumbai and foreigners were targeted in the attacks. He also said he would expose the “whole infrastructure of the Lashkar-e-Taiba,” the Pakistani extremist group that India and the United States say masterminded the attacks.

But Mr. Kasab’s lawyer, S. G. Abbas Kazmi, said that his client had been “mentally tortured” by his guards, who told him that the case was now a lost cause for him since Pakistan had given him up and since the police, court and even defense lawyers were Indian. When the judge asked Mr. Kasab whether that was true, he said that this happened some time ago when he was in police custody, not recently.