Patna/, July 19 -- Prime Minister Narendra Modi on Friday tore into the Opposition in two separate rallies, accusing the Rashtriya Janata Dal and Congress of blocking Bihar's progress and alleging that the Trinamool Congress risked West Bengal's identity and national security by promoting infiltration for votebank politics. Modi addressed a rally in Motihari in Bihar after laying the foundation stone and inaugurating multiple development projects worth Rs.7,200 crore. Later in the day, he spoke at Durgapur in West Bengal after inaugurating projects worth Rs.5,400 crore. In Bihar, Modi said his government's top priority was to remove backwardness - whether of the region or the people - and therefore Bihar was poised for fast-paced developmen...