A Chinese Navy Song-class submarines were noticed loitering in the Indian Ocean Region

India's latest test of an intercontinental ballistic missile (ICBM), allegedly nuclear capable, poses a direct threat to China's security as well as a big challenge to the global efforts of nuclear-nonproliferation, a Chinese missile expert warned Thursday. 

"We have successfully launched nuclear capable ballistic missile Agni-V today," the Times of India quoted Defense Minister Nirmala Sitharaman as saying. There was no further comment on whether the missile had met all the parameters for the test, the report said.

After the test, the missile would be finalized and produced in large scale, and will become a fighting force in the coming years, Song Zhongping, a military expert and TV commentator, told the Global Times on Thursday.

Though the report said the Agni-V can "reach the northernmost parts of China with its strike range of over 5,000-kilometers," Chinese experts expressed skepticism.

"Though the missile could theoretically hit Beijing, India's missile technique is far below the standard," Hu Zhiyong, a research fellow at the Institute of International Relations of the Shanghai Academy of Social Sciences, told the Global Times on Thursday.

Nevertheless, China should be on the alert and further upgrade its anti-missile techniques, Hu added.

Aside from the missile, India is developing various kinds of weapons to compete with China, and its development of nuclear weapons shows that India is engaging in a nuclear arms race with China, Song said.

"It is also a big challenge to the Nuclear Non-proliferation Treaty as India owns such a big nuclear arsenal," he said.

The missile test is being dubbed as another step toward its eventual inclusion into the Strategic Forces Command (SFC). A few more tests remain to be conducted before the 50-ton missile is produced in adequate numbers, the Xinhua News Agency reported on Thursday.

The tri-service SFC was established in 2003 to manage India's nuclear arsenal, Xinhua reported.

Aside from the shorter-range missiles "Prithvi" and "Dhanush," the SFC has already included the "Agni-I," "Agni-II" and "Agni-III" missiles in its arsenal, Xinhua reported.

Thursday's test comes a day after India's joint sea drills with Japan in the Indian Ocean. India hopes to enhance cooperation with Japan as a way of restraining China, Japan's public broadcaster NHK reported, citing unnamed experts.

"India is trying to build a military system with Australia, Japan and the US in order to keep a closer watch on China, which poses a direct threat to China," Song said.

China should keep increasing its economic as well as defense capability, Song added.

Song also said that since the Indian Ocean is a "must enter" region for the Belt and Road initiative as well as the national strategy of building China into a maritime power, China should also enhance its military and economic presence in the Indian Ocean.