Gurugram, Dec. 9 -- Two men have been arrested from Dwarka expressway near Sector-37D on Sunday for allegedly abducting two college students and demanding a Rs.5-lakh ransom from their families for not returning the money one of them had borrowed from the suspects, police said on Monday. The accused were identified as Mohammad Danish, 22, of Uttar Pradesh, and Mohammad Riyan, 23, of Delhi's Okhla. Police said the third and the key suspect, Mayank, was yet to be arrested. The three had abducted 21-year-old Rahul Kumar, a resident of Rohtak, and 22-year-old Krishna, from Noida, both students in Greater Noida. Police said Rahul had not returned the Rs.2 lakh he borrowed from Mayank about three months back. Thus, Mayank planned to hold him hostage with the help of Danish and Riyan. The duo kept the victims in an empty office of a closed private firm in Sector-83. They coerced Rahul to call his family and ask for Rs.5 lakh in lieu of their freedom....