Myanmar dismisses accusations of ethnic cleansing, saying it has to tackle the insurgents, whom it accuses of setting fires and attacking civilians as well as the security forces.
The Rohingya, a stateless Muslim minority, are reviled in Buddhist Myanmar where they are regarded as illegal immigrants.
However, telecom companies have asserted that the ban could be lifted once the refugees get biometric identity cards in a process which the army claims might take six months.
Singh said that in response to a petition filed before the Supreme Court by Rohingya seeking asylum in India, the government filed an affidavit with the court in which it noted that many Rohingya had links with the Islamic State extremists and Pakistan's Inter-Services Intelligence spy agency.
Besides the working group, the Myanmar government will also organise a trip for foreign diplomats to Rakhine State next week.
Rohingya refugees have blamed the army and ethnic Rakhine Buddhist mobs for killings and arson attacks.
Turkish Red Crescent Society President Kerem Kinik said they were pleased to know the bank was aware of its social responsibility and keen to help vulnerable groups.
Myanmar's military says its operation is aimed at rooting out militants and has repeatedly denied targeting civilians.
The United Nations have appealed to the entire global community to keep the political differences aside and support the ongoing humanitarian efforts to help Rohingya Muslim refugees.
"What we are doing is appealing to the many, many populations in Burma... to remember their own experience and show some compassion regardless of the political complexities for the Rohingya people", Murphy said.
"Hundreds of thousands of refugees are living in an extremely precarious situation, and all the preconditions for a public health disaster are there", Onus said in a statement, calling for a "massive step-up of humanitarian aid".
The decision was reached at a meeting between Aung San Suu Kyi and members of the Implementation Committee for the Recommendations on Rakhine State in the country's capital, Nay Pyi Taw.
"It is the act of ARSA terrorist group", it added, using an acronym for the Rohingya militant group whose raids on police posts in August triggered the military backlash. It would be appropriate if a clear deadline is given to Myanmar to fulfil what Suu Kyi said recently to end violence and bring its perpetrators to justice. "We will help 20,000 families this week", he said.
Some 40,000 Rohingyas have settled in India, and 16,000 of them have received refugee documentation, the United Nations estimates.