Indian Prime Minister Narendra Modi has declared victory in the election in the eastern state of Bihar. The vote is regarded as a crucial test of Mr Modi's popularity in one of the country's poorest, yet most politically influential states. Final numbers are yet to be released, but partial results from the election commission show Mr Modi's BJP-led National Democratic Alliance is expected to take the majority of the seats in the 243-member legislature. Ishan Garg reports from Patna, the state