A U.S. military official said the situation across northeastern Syria was "deteriorating rapidly."
Coastal police stations and police chiefs have been alerted about suspicious vessels.
The video would be the first from Baghdadi since he was filmed in the Iraqi city of Mosul in 2014.
Yago Riedijk, who is Dutch, said he rejects the Islamic State.
Some newspapers reported that she had "vanished", but her lawyer denied the claims.
"When I saw my first severed head in a bin it didn’t faze me at all."
ATS sleuths seized certain chemicals, acid bottles, sharp knives, mobile phones, hard disks and some SIM cards from the group, the official said.
They were produced amidst tight security and with covered faces before Additional Sessions Judge Ajay Pandey who ordered in-camera proceedings in the case.
The group comprises youths in the 20-35 age group with moderate education (barring two), hailing from middle-income group families and allegedly radicalised by an Amroha-based Mufti.
NIA conducted searches across 17 locations in Uttar Pradesh and New Delhi in connection with a probe into the ISIS module called ‘Harkat ul Harb e Islam’.