Kolkata, Nov. 4 -- West Bengal's South 24 Parganas police on Wednesday seized cash worth over Rs.1.02 crore from a political party's office while investigating a land grab case in which Sumit Roy, private assistant to Mamata All India Trinamool Congress (MAITC) leader Abhishek Banerjee, is in custody as a prime suspect, police said.

"Police searched a political party's office in the Sarisha area following statements Sumit Roy made and seized more than Rs.1.02 crore," the district's additional police superintendent Abhishek Majumdar said.

"Which party ran the office and what role Sumit Roy played are both under investigation," Majumdar added.

The police, however, did not name the party whose office was searched, though the Trinamool Con...