Abhishek Banerjee, the nephew of Bengal Chief Minister Mamata Banerjee, on Thursday threatened Prime Minister Narendra Modi with a legal notice for accusing him of illegally occupying building from where he was running his party office. Modi had earlier alleged that “Bhatija” (Abhishek) was illegally occupying the building from where the TMC ran its party office in his constituency. “Apologise within 48 hours or I shall send you a legal notice for telling the lie,” he said. Elsewhere at Durgapur Railway Station a man was arrested by the GRP for carrying unexplained cash amounting to Rs 70 crore. He was carrying the cash in a trolley bag. Earlier two men, including an alleged former PA of State BJP president Dilip Ghosh was arrested from Assansol Station with Rs 1 crore.