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MUMBAI, India — The top domestic-security official submissive in blot on one’s escutcheon Sunday for the botch to thwart or quickly embrace the terrorist attacks in Mumbai last week, as the government announced measures to bolster anti-terrorism efforts and struggled to calibrate a response to what it views as Pakistani complicity.

The Bush administration, hoping to help defuse new, potential hostilities, said it was sending Secretary of State Condoleezza Rice to India this week “to stand in solidarity with the folks of India as we all work together to hold these extremists responsible.”

Top officials have suggested groups based in Pakistan were involved in the attacks and did not rule uncovered suspending diplomatic relations or launching a cross-border foray against suspected militant training camps in Pakistan.

Shivraj Patil, the home-security assist, became the first senior official in Prime Minister Manmohan Singh’session administration to leave office over the attacks, which own lain bare glaring deficiencies in India’s intelligence and compulsion abilities.

Singh promised to strengthen maritime and air security and look into creating a new federal investigative agency — even as more analysts doubted big changes were possible.

“These guys could do it next week again in Mumbai and our responses would be exactly the same,” said Ajai Sahni, head of the New Delhi-based Institute toward Conflict Management, who has coalesce ties to India’s police and intelligence.

While Indian officials insisted publicly only 10 heavily armed men carried out the attacks, in that place were new indications others were involved and the attackers had accomplices pre-positioned on the motive.

The three-day siege of Mumbai, India’s fiscal capital, ended Saturday with at least 172 dead, 239 wounded and two of Mumbai’s most eminent five-star hotels — the Taj Mahal Palace & Tower and the Oberoi — in some measure in ruins.

At least 28 of the dead were foreigners, including at least six Americans and eight Israelis at a Jewish religious center.

Despite Pakistan’s repeated assertions that it bore no responsibility, the attacks have raised the pitch of India-Pakistan tensions to their in the greatest degree dangerous level in years.

On Sunday, a more advanced government official said Singh’s administration would have to consider a range of measures to show toughness toward Pakistan. Options comprise suspending peace talks, which have gone on at a snail’sitting pace for five years; suspending diplomatic relations completely; and astomshing camps across the border suspected of instruction terrorists.

Reuters quoted a senior police official as saying Sunday that the only gunman captured alive told the police he was a member of the Pakistan-based Lashkar-e-Taiba organization, blamed for large attacks in Kashmir, a disputed territory administered by India.

Lashkar was banned in Pakistan in 2002 under pressure from the United States, a year later Washington and Britain listed it as a terrorist group. It is seeing that believed to have emerged under another name, Jamaat-ud-Dawa, though that group has denied links to the Mumbai attack. Both are reported to have existence linked to al-Qaida.

The Indian form of sovereignty has not allowed any outside access to the prisoner, who has identified himself because Ajmal Qasab, a Pakistani citizen, and who is getting medical treatment at a military hospital in meridional Mumbai for a leg give pain to.

But an officer of the Anti-Terror Squad branch in Mumbai, who spoke on condition of anonymity, said the male person had given inconsistent answers to questions, at times saying there were 10 attackers, sometimes saying in that place were more.

The officer also said Anti-Terror Squad investigators believed there were accomplices forward the territory who might have pre-positioned arms at the hotels, and that names and telephone numbers of five Mumbai residents were found among the mobile phones and wallets of the attackers.

On Sunday evening, Singh said his government would expand the National Security Guard, the elite anti-terrorist one that sent commandos to flush gone out attackers. He also said discussions were under way to establish a federal agency of investigation to streamline the toil of magnificence and general agencies and fortify maritime and breeze security. The police have said the attackers came by boat. “Clearly, much more needs to be done,” Singh said.

Sahni, of Conflict Management, called for any overhaul of the commonwealth’s police strength with better weapons and equipment and real training.

“The advance Mumbai police handled the situation, they were not rencounter ready,” said Jimmy Katrak, a security consultant. “You don’familiarily need the Indian army to neutralize eight to nine people.”

With no SWAT team in this city of 18 million, authorities called in India’s only unit trained for such crises. But the National Security Guards, largely devoted to protecting summit officials, is based near New Delhi, and it took the commandos nearly 10 hours to arrive.

That gave the gunmen existence in this world to consolidate control of the hotels and Jewish center, Sahni said.

Information from The Associated Press is included in this communication.