The accused in an alleged acid attack on a Russian national in Nand Nagar colony area, has been arrested here when he went to visit the victim in the hospital. Siddharth Srivastava, who had fled to Allahabad after committing the crime, was nabbed on Friday when he came back to visit the 23-year-old victim in the hospital here, Varanasi SSP, Akash Kulhary said. Addressing a Press conference here on Saturday Kulhary clarified that the victim had dual citizenship of Russia and Bulgaria and was living with the accused as his friend, and not as a paying guest.