Sharif visited the mausoleum of Sufi saint Syed Ali Hamdani and offered fateha soon after his arrival.
The CASA-1000 Project is a flagship project and the first of its kind that will link Pakistan, Afghanistan, Tajikistan and Kyrgyzstan in electricity grid.
Under CASA-1000 Project, Tajikistan and Kyrgyzstan will supply 1300 MW of electricity to Pakistan and Afghanistan. The project is likely to be completed by 2018.
The leaders of the member countries and other stakeholders will attend the launching ceremony.
Prime Minister would meet the President of Tajikistan during his stay in the country. He will discuss bilateral cooperation in diverse fields, including trade, energy and defence with Tajik leaders.
Sharif will also have meetings with the leaders of other members of CASA-1000 Power Project.