Hyderabad, Jan 17 (IANS) A Hyderabadi engineer, who was arrested while on his way to Syria via Dubai to join terror group Islamic State in Syria, planned to return to India to carry out anti-national activities, police said Saturday. Police, who an**unced the arrest of 32-year-old Salman Mohiuddin Friday night, are questioning him to gather more information, including identification of the youth he was in touch with in India. The US-returned techie was arrested at the Rajiv Gandhi International Airport here late Thursday when he was leaving for Dubai.