Kolkata: Two Dum Dum-based real estate syndicate members were arrested on Wednesday for carrying out an attack on a doctor’s house in Birati over a dispute over building material supply. Cops said Ankush Dutta and Sunny Pal barged into the under-construction building of doctor Prakash Das and damaged the meter box after Das refused to buy building materials from the syndicate.— Sanjib Chakraborty