After Hindus, Christians are Pakistan's second-largest minority, representing about 1.6 per cent of the country's overwhelmingly Muslim population. Large populations are in the southern metropolis of Karachi, and there are many Christian villages in Punjab province.
"It is also a somber occasion this time around because of the Peshawar church bombing. Despite the element of fear, people are thronging churches and the numbers would be high on Christmas," Cecil Shane Chaudhry, Secretary of the National Commission for Justice and Peace, told PTI.
The NCJP is a human rights body set up by the Pakistan Catholic Bishops Conference in 1985.
Though Christian community has earlier been targeted by extremist groups, the bombing of All Saints Church in Peshawar was the deadliest attack against it.
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Two bombers blew themselves up in the courtyard of the historic church as worshippers exchanged greetings after a service leaving at least 82 dead and hundreds of families shattered.
"We are sorry that the situation is going this way. It is not hurting just our country but others in the region also," he said.
He said churches have volunteers who keep an eye out for suspicious people and put up metal detectors.
"So much security to even celebrate," he rued.
It is not just extremists that Christians are afraid of. Many Christians have been convicted under the controversial blasphemy law in the country.
Punjab's governor Salman Taseer and Minorities Affairs Minister Shahbaz Bhatti were shot dead by extremists after they voiced support for a Christian woman convicted of blasphemy. Taseer was shot dead by his own police guard for opposing the blasphemy law.