In limiting itself to "diplomatic offensive", the Centre may have pre-empted a Pakistani move that was relying on a sharp counter-attack from India as a reaction to Uri.
Imran, who reached here in the afternoon was given a rousing welcome by partymen. He was flanked by senior leaders Shah Mahmood Qureshi and Sheikh Rasheed.
Sharif has refused to step down, while protest leaders have rejected his calls to come to the negotiating table, creating a dangerous deadlock and prompting fears the military might seize power.
Nawaz Sharif government turned to Parliament for support as demonstrators continued to put pressure on a defiant Nawaz Sharif to quit as Prime Minister.
Follow live updates from the ongoing protests in Pakistan here,
The violence in Pakistan comes as part of the mass demonstrations led by cleric Tahir-ul-Qadri and opposition politician Imran Khan that demand Prime Minister Nawaz Sharif resign.
Pakistani protesters pushed closer to the prime minister's house in central Islamabad on Monday in their bid to force his removal and forced national television off the air after clashes turned violent over the weekend.
Even as the political crisis in the country deepens, Pakistan Tehreek-i-Insaf (PTI) Chairman Khan's former teammate and cricket legend Miandad announced his support for the ongoing protest here.
The weekend clashes in Pakistan left nearly 500 people injured, including some children and nearly 100 police officers.
Transmission of the main state news TV channel in Pakistan was cut minutes after an anchor announced demonstrators had entered the building and "besieged" staff.
Toppled in a 1999 coup, jailed and then exiled, Sharif made a triumphant comeback as PM for a third time in last year's polls. But critics say that slow pace of reforms, apparent detachment and poor relations with the military emboldened his challengers and encouraged the anti-government protests.
Pakistan Supreme Court on Thursday rejected the government's plea to issue an order for the eviction of protesters besieging the Parliament, saying it is an administrative matter and should be dealt with in accordance with the law.
Even if, as seems likely, the Khan and Qadri protests eventually fizzle out due to a lack of overt support from the military, the Nawaz Sharif will emerge weakened from the crisis.
The protests come as Pakistan's armed forces wage an offensive against Taliban militants in the northwest and as the government tries to boost a flagging economy.
The protests have piled extra pressure on the 15-month-old civilian government already struggling to overcome high unemployment, daily power cuts and a Taliban insurgency.
Former cricket star Imran Khan says last year's general election, in which his Pakistan Tehreek-e-Insaaf (PTI) party came third, was rigged and has demanded Prime Minister Nawaz Sharif resign and hold new polls.
Pakistan government has said it was ready to discuss all "constitutional" demands put forth by Pakistan Tehreek-e-Insaf and Pakistan Awami Tehreek.
"Ppl know NS (Sharif) along with ROs (Returning Officers) & caretakers were all involved in 2013 electoral match fixing. They will not accept it," the cricketer-turned-politician tweeted.
Imran Khan, the cricketer-turned politician, has made it clear that his current protest would end only after Sharif’s resignation.