Agartala, Dec 1 (IANS / TIWN) Four Tripura Gramin Bank officials feared abducted safely returned home on Friday though the mystery around their disappearance a week ago remains.

"We will not disclose anything at the moment about their return. The matter is under investigation. Police is trying to get details from each of these officials," a senior police official said.

He said the four bank officials -- kidnapped last Friday -- were fine.

Earlier, police said bank's Taidu Branch Manager Tanumoy Bhattacharjee, 30, Sujit Chandra Dey, 28, Raktim Bhowmik, 31 and Subrata Debbarma, 32 were abducted on November 24 night by miscreants while returning by their vehicles to Agartala through Teliamura.

Their car and motorcycle were found in nearby districts on November 26.

Families of these officials had told the media that unidentified persons called up and demanded Rs 20 lakh each for their release.

The Bharatiya Janata Party state unit had threatened to gherao Chief Minister Manik Sarkar's official residence if the officials were not rescued immediately. The party later withdrew the gherao threat.