New Delhi, June 23 -- Delhi Police on Monday said they have rescued a 20-day-old baby boy and arrested a businessman and his daughter-in-law for allegedly purchasing the infant for Rs.8 lakh, as investigators widened their probe into a child trafficking racket that police believe sold around 30 babies over the past two years. The latest arrests come days after police busted the interstate syndicate and arrested 13 people. So far, six infants have been rescued. Police said the racket was allegedly operated through Hira's Multi Speciality Hospital in Begampur, Rohini. Among those arrested earlier were the hospital's owner, Dr Viveki, 47, freelance lab technician Pratibha, 34, and alleged mastermind Saybabhai Ghamar alias Kalia, 25. According to investigators, the syndicate targeted economically vulnerable families in Rajasthan and Gujarat, paying them Rs.1.5 lakh-Rs.2 lakh for newborns and then selling the babies to childless couples in Delhi-NCR, Haryana, Rajasthan, Madhya Pradesh and Gujarat for Rs.6 lakh-Rs.9 lakh. Special commissioner of police (law and order) Devesh Chandra Srivastava said further arrests and recoveries are expected. Police said hospital records and call records of the accused led investigators to a Rohini family that allegedly purchased a newborn on June 5. "A raid was conducted on Monday and the infant was rescued," said an officer. Police arrested Garima Jain and her father-in-law, Satish Jain....