The daughter of an Indian diplomat is suing New York City $1.5 million for arresting her after someone else sent nasty emails to her high school teacher. Krittika Biswas, 18, was removed from her Queens high school in handcuffs in February and held for more than 24 hours, she said at a news conference yesterday. Another student was later found to have sent the obscene emails but was never arrested, according to the lawsuit. Biswas is the daughter of Debashish Biswas, the vice consul at the Consulate General of India in Manhattan. (More diplomat stories.)