Prime Minister Najib Abdul Razak has accused the opposition of not being able to see past their own noses, in their criticism against his rule and accusing him of not doing anything to develop the country, ignoring what he said are his many contributions to date.

"It has been seven years since the nation's leadership changed hands, but some especially the opposition, still claim that no development has been delivered by the present administration and compared me to the previous leadership.

"Their arguments are no more than empty words, and I think they are pretending not to see," said Najib in a posting on his official blog.

The Pekan MP told his critics not to be like a "katak bawah tempurung", referring to the Malay proverb of a frog that lives under a coconut shell and thinks that the space it occupies is the entirety of the world, refusing or is unable to leave its confines and see the outside world for itself.

The prime minister argued that there had been substantial development in the nation's infrastructure under his tenure, which had gone on to revitalise the economy.

"To the opposition, do not act like a 'katak bawah tempurung'," blasts Najib.

The PM said that his administration had created hundreds and thousands of jobs via the many development projects, recounting the MRT, the East Coast Highway 3, the Pan Borneo Highway, LRT 2 and 3, as well as the Sultan Abdul Halim Mu'adzam Shah Bridge.

Najib argued that such projects not only contributed to the economy as a whole, but also served to bridge the disparity between urban and rural areas.

He also pointed to the parade of big ticket projects that were not only economically beneficial but would become national monuments, like the Iskandar District, Rapid Pengerang, Danga Waterfront, Tun Razak Exchange, Bandar Malaysia and the KL118.

"What is queer is that some claimed that not even a single pillar has been put up for the construction of buildings like the Tun Razak Exhange and KL118.

"I would advise them to go and see the construction sites for themselves before making accusations that will only embarrass themselves," he said.

Najib added that abroad, Malaysia was also involved in the Battersea development project, which was revitalising an iconic London landmark.

"See for yourself on the internet, all the projects that are making Malaysia famous," concluded Najib.

The opposition had criticised Najib for the mega-projects implemented under his tenure, pointing out that most were not awarded via open tender, and were too highly priced, resulting in the country sinking deeper into debt.

And while some of them agreed such projects could have a positive social and economic impact, they argued that the implementation and delivery of the mega projects left much to be desired, and seemed to be plagued with problems and delays.

Najib, however, contended that there was nothing wrong with the projects, accusing the opposition of simply nitpicking and trying to create a negative impression over the developments he was spearheading out of political angst.