ISLAMABAD - After claiming publicly that the Pakistan Tehreek-e-Insaf (PTI) was not involved in the attack on PTV headquarters during the party's more than four-month-long sit-in in Islamabad's high security red zone , PTI Chairman Imran Khan in a leaked audio was heard showing his pleasure over the action of protesters storming the state-run TV.

In the leaked conversation, which the PTI said was doctored, MNA Dr Arif Alvi can be heard informing Imran Khan that protesters forcibly entering the PTV building have suspended its transmission. In response, Khan said, "It's good!"

The PTI chief also told Alvi that the Nawaz government deserved the attack. "This is good... They deserve it, they (protesters) are forcing Nawaz to resign, otherwise Nawaz will not resign; he (Nawaz) is relying on joint session and I want that he should resign tonight," Khan can be heard saying in the audio.

The PTI said it was an engineered tape prepared by mixing voices from different conversation between PTI chief Imran Khan and party MNA Dr Arif Alvi. The party announced it will take this matter to the court for thorough investigation as making such a tape is a crime, and doctoring a tape to malign any person or party was a gross violation of law.

Talking to the media, Imran Khan said: “Tapping phone calls is a crime. Who committed this crime?”

The unverified audio that went viral on social media last night has been leaked at a very critical time when the government and the PTI have agreed to form a judicial commission to probe allegations of rigging in the last general elections. Interestingly, the PTI is questioning the taping of telephones now but has been criticising the PML-N in the past on the basis of some telephonic conversations.

Another part of the audio confirms contacts of the PTI with the Muttahida Qaumi Movement (MQM) during the former's sit-in in the capital as part of its strategy to exert more pressure on the prime minister to resign. In the conversation, Alvi asked his party boss that as he (Imran) had told them that the MQM would make a contact tonight and a press release had already been prepared but no phone came till 2:30am. Imran Khan in response advised Alvi that he should try to contact the MQM ‘today’, as they had to exert more pressure on the government ‘today or tomorrow’.

Hundreds of protesters allegedly belonging to the PTI and the Pakistan Awami Tehreek (PAT) had attacked the building of the state-run Pakistan Television (PTV) on September 1, 2014.

The PTI leadership including Imran Khan and Dr Alvi both indirectly accepted some of the contents of the audio but questioned who had taped their phones. Dr Alvi was the first one who gave his version.

"My voice & IK's voice seems genuine. Different words & conversations spliced together. I am staunch supporter of privacy. I never record calls." Alvi said in his tweet. In another tweet, the PTI MNA said, "Even to splice a conversation, 'to mix & match & patch', somebody is recording phone calls without legal authority." PTI Central Information Secretary Dr Shireen Mazari in her Twitter message alleged the MQM for leaking this 'doctored' audio.

Agencies add:

PTI leader Imran Ismail taking to media said that they will take the audio tape in the court for further investigations.

Arif Alvi said: "I resigned from a National Assembly committee when a huge file of telephone conversations was presented." The leader further said that his iPhone was not working properly and he didn't attend any call since last night. He tried to reset it but it hanged.