I am getting slow speed only during night unlimited period from last couple of months. In daytime I am getting 190-210 Kbps but 2am-8am is 80-100 Kbps. I am under Home 500 plan. I am from south Kolkata and I am in NIB1 (old customer). One of my friend in the locality also facing the same problem. Is there anybody else in Kolkata who is facing the problem? Please report along with your plan details and location so that we can mail this thread to CGM, BSNL Kolkata.