The duo hailing from Kamjong district had gone to Delhi for an eye operation, staying at rent at Kotla Mubarakpur, and had "consulted at AIIMS" and treated on April 8 last.
The 64-year-old mother- 23-year-old daughter duo is "asymptomatic as of now."
They left Delhi (Safdarjung) on a bus on April 14 and entered the state through Mao Gate bordering Nagaland and were quarantined at IIIT Govt Quarantine Centre in Mantripukhri.
The twenty co-passengers who came with her have been identified and "contact tracing has been initiated" as per protocol.
