Malda superintendent of police Arnab Ghosh said 753 expensive mobile phones were seized from the den at Sujapur in Kaliachak area.
The raid was conducted following a tip off and the phones are expected to cost an estimated Rs 80 lakh.
The phones, he said, were stolen from various places and kept in the place.
Of the ten arrested nine haill from Kaliachak itself and one from neighbouring Murshidabad district, police said.