A 25-year-old woman was allegedly sexually harassed and assaulted aboard the Malabar Express in Kerala after threatening to report the accused. Railway police arrested the 39-year-old man, while officers said an assault case was also registered against him in Attingal. Thiruvananthapuram: A 25-year-old woman was allegedly sexually harassed by a man aboard the Malabar Express on Tuesday and assaulted when she threatened to report him to the police.