He said the day will be remembered as a crucial milestone like Independence Day in the history of Pakistan.
The day is observed every year as Youm-e-Takbeer.
"Pakistan nuclear programme has made country's defence impregnable," he said in his message.
He also said that the day was a golden chapter of the history of the country.
The Prime Minister said Pakistan's atomic programme is aimed at ensuring peace in South Asia and maintaining balance of power in the region.
He said that peace has returned to the country and the economy stabilised as Pakistan was marching towards becoming an economic power.
Vice President of China National Nuclear Corporation in
his speech said cooperation with Pakistan in nuclear energy was reflective of strategic ties between the two countries.
The completion of Chashma-3 will strengthen cooperation with Pakistan in peaceful uses of nuclear energy, he said, adding that nuclear power plants are playing a vital role in economic development of Pakistan.
To achieve this target, planning for establishment of more plants have been done and places identified and research work in this regard is going on, Naeem said.
He said three plants have been planned, out of which one will be established in Chashma and two in Muzaffargard.
Necessary skill has been acquired to prepare fuel for nuclear power plants and in Chashma land has been acquired for fuel fabrication plant, he said, addding that presently fuel for Chashma power plants are being imported from China.