"The national single window for investment scheme (PTSP) is one way for investors to know the potential areas for investment," said Basri, on the bestowal of the PTSP Accomplishment award on Monday.

Basri explained that the constraints faced by investors in their businesses in Indonesia, are related to inefficiencies within the bureaucracy.

"Therefore, we need the support of the local governments to help and facilitate investors to invest in Indonesia," he said.

Basri believes that the target of Rp 390 trillion in investments in 2013 can be achieved if the local governments create a good investment climate in their respective regions.

"A competition on the implementation of PTSP is essential, so that every region can compete to provide the best service for investors. And the winner will be a region that runs an efficient PTSP system, which successfully attracts investors to invest in the area," he added.

Meanwhile, the Home Affairs Minister, Gamawan Fauzi, said that only 80 percent of the regions in Indonesia, or as many as 445 regions, have implemented the national single window for investment scheme.

According to him, the Ministry is all set to encourage investments in Indonesia to boost the economic growth. It plans to do so by coordinating with the local governments to facilitate and accelerate the investment process.

"This year, we have issued a public service regulation that requires each region to have an integrated service," the Minister said.

Thirty-eight regions have been nominated for the best system of `single window for investment scheme`, which comprises 10 provinces, 20 districts and 8 cities.

The top three cities for the best PTSP organizers are Palembang, Semarang and Salatiga. Meanwhile, the best districts of PTSP organizers in 2012 are Sragen, Purwakarta and Trenggalek.

Furthermore, the top three provinces of PTSP organisers are East Java, South Sumatra and West Java.