Former union minister Arun Shourie on Saturday asked the opposition to work together to throw out the BJP government at the Centre in the coming Lok Sabha polls. Referring Trinamool Congress chief Mamata Banerjee as "Bengal Tigress", he said, "The Bengal tigress has given the call to oust BJP. I am sure it will be successful." The opposition parties should unitedly pitch single candidates against the BJP contestants in the country to win the Lok Sabha poll.