Patna, Feb 22 (ANI): Nitish Kumar after taking oath as chief minister of Bihar, addressed mediapersons in Patna and expressed gratitude to all the dignitaries who attended his swearing-in ceremony. Kumar thanked Bengal CM Mamata Banerjee, UP CM Akhilesh Yadav and Assam CM Tarun Gogoi among others. He also said that Congress President Sonia Gandhi could not attend the event but sent a letter congratulating him. Kumar also said that he took over as the chief minister of the state as the people were not happy with his decision to resign from the post. He also talked about his vision for development of Bihar.