A foreign tourist wears a face mask amid fears of the spread of the COVID-19 while celebrating Holi in Pushkar on Tuesday. AFP
"All existing visas, except diplomatic, official, UN/international organisations, employment, project visas, stand suspended till 15th April 2020," India's Health Ministry said in a statement.
The order will come into effect from 1200 GMT on March 13.
It was not clear if the ban would include short-term business visas, though the advisory said anyone with a "compelling reason" to travel to the country could contact their nearest Indian mission.
It also urged Indian nationals to avoid all non-essential travel abroad, in one of the most far-reaching advisories since the outbreak began in late December.
Spokespeople for India's Health and Foreign Ministries did not respond to requests for comment.
On Tuesday India suspended issuing visas to citizens of France, Spain and Germany until further notice. Such restrictions were already in place for citizens of China, Italy, Iran, Japan and South Korea — the five countries worst hit by the outbreak of the virus.
India has also closed a border with neighbouring Myanmar to counter the coronavirus outbreak, as countries across South Asia reported a rise in cases on Wednesday. No cases have so far been confirmed in Myanmar.
"As a precautionary measure (to prevent) transmission of coronavirus/COVID-19, the international border with Myanmar has been closed ... until further orders," N. Biren Singh, chief minister of the northeastern state of Manipur, which shares a border with Myanmar, said in a tweet on Tuesday.
Total cases in the country rose to 68 on Wednesday, according to data from the federal heath ministry and the chief minister of Maharashtra state.
The country's southern state of Kerala, which reported three new cases over the weekend, said on Tuesday it was shutting schools and movie theatres to avoid a further outbreak. Schools in at least two more states have also been closed.
"We are deeply concerned both by the alarming levels of spread and severity and by the alarming levels of inaction. We have therefore made the assessment that COVID-19 can be characterised as a pandemic," WHO Director General Tedros Adhanom Ghebreyesus told a news conference on Wednesday.
"The Prime Minister is in good health with no symptoms. As a precautionary measure and following the advice of doctors, he will be in isolation for a planned period of 14 days," the statement added.
Taimur Saleem Jhagra, the Health Minister for Khyber Pakhtunkhwa (KP) province, where both victims died, told AFP the men had recently travelled internationally.
The Gulf Co-operation Council (GCC) nationals wishing to enter the UAE should undergo COVID-19 medical test and place themselves under house quarantine for 14 days, said a statement issued by the Ministry of Foreign Affairs and International Cooperation on Friday.
Dubai Municipality has announced that camping with caravans on the Jebel Ali beach in now allowed with a permit issued through its website.
Calls to boycott French goods are growing in the Arab world and beyond, after President Emmanuel Macron criticised Islam and vowed not to "give up cartoons" depicting the Prophet Mohammed (PBUH).
The Ministry of Health and Prevention (MoHAP) announced that it conducted 118,058 additional COVID-19 tests over the past 24 hours, using state-of-the-art medical testing equipment.