The day began in federal capital Islamabad and four provincial capitals with 21-guns salute.
Processions being taken out and Milad gatherings organised to celeberate the occasion across the country.
The authorities have declared security high alert and the routes of processions have been secured by putting hurdles at various places.
The mosques and other buildings and roads have been tastefully illuminated on the occasion.
The government, local administrations and private organisations have made elaborate arrangements for illumination and decoration of buildings and parks.
The government has declared a public holiday today.
In their messages on the occasion, President Mamnoon Hussain and Prime Minister Nawaz Sharif have called upon the nation to resolve all issues through reconciliation and dialogue in keeping with the teachings of the Holy Prophet (PBUH).