In a cordial gesture, Maharashtra Navnirman Sena chief Raj Thackeray on Saturday sent a bouquet to his estranged cousin and Shiv Sena president Uddhav Thackeray to congratulate him for the astounding success of Shiv Sena in the Lok Sabha elections.br br Shiv Sena, an alliance partner of BJP, won 18 out of the 20 seats it contested in Maharashtra.