Asserting that all the 'culprits' behind the Mumbai attacks must be apprehended, Pakistan on Sunday said Indian investigators will be more than welcome to help in its probe into the terror strikes. Interior Ministry chief Rehman Malik also said anyone found to be involved in the 'heinous' attacks would be prosecuted under the country's anti-terror laws. In an interview with a private TV channel, Malik said Pakistan's investigations into the Mumbai attacks are being conducted under the country's laws and the government will not accept any foreign pressure in this regard. He said no assistance would be sought from foreign countries though Indian investigators will be more than welcomed to help in the probe. "Pakistan is very open and the inquiry officers have been bestowed with full powers to fulfil their task," Malik said. India should reciprocate Pakistan's gestures in the same spirit and allow Pakistani investigators to travel to the neighbouring country, he indicated. The Pakistani inquiry 'cannot proceed without the provision of legally-tangible evidence', he remarked. Malik also told the channel that if India insisted on its demand for the extradition of Pakistani nationals allegedly linked to the Mumbai attacks, Pakistan would also seek the handing over of persons involved in the 2007 bombing of Samjhauta Express. "If the Indian demand for handing over the accused in the Mumbai attacks persisted, then the accused of the Samjhauta Express case might be asked for" by Pakistan, Malik said. Replying to a question about Indian fears of Talibanisation of the region, he urged Indian authorities to share their findings in this regard with Pakistan and cooperate with it in its bid to exterminate terrorism and extremism from South Asia. He also said Pakistan is part of the world community and a member of various international forums and is thus bound to fulfil its international obligations. Online adds: The Pakistani team probing the Mumbai attacks is likely to demand access to Ajmal Kasab, the lone survivor of the 26/11 terror strikes, to question him on his suspected links with Pakistan-based banned outfits, a senior official privy to the investigations said. The official said the three-member team has looked into the 'material' provided by India, Kasab's confessional statement, his letter to the Pakistan High Commission in New Delhi, TV footage and his photographs sent by India and available with some news channels. The investigating committee has asked the authorities here that they would like to interrogate Kasab as "he is the only person who can give exact information if he had any links with any of the militant organisations in Pakistan". On the other hand, Interior Affairs Advisor Rehman Malik said if India insisted on extradition of suspects of the Mumbai attacks, Pakistan can ask for handing over of Lt Col Srikant Prasad Purohit who is alleged to have links with the Samjhauta Express blasts in February 2006. "Yes, we can demand extradition of Purohit," Malik said in an interview with a private TV channel the other day. He said there were suspicions how a senior police officer Hemant Karkare was killed during the Mumbai attacks. Malik said that initially the Samjhauta Express attack was blamed on Pakistan but Karkare was the person who investigated and found out the real story. "Who knows why he was targeted... such acts create suspicions in our mind," he said.