MTNL Mumbai has increased the pulse rate for landline-to-land-line local calls from three minutes to five minutes. The new pulse rate is effective between 11 p.m. and 6 a.m. The increased pulse rate will benefit those who want to surf the net at night using dial-up services. Unlike the earlier cost of Rs 24 per hour of surfing, using the telephone line for internet surfing would now cost about Rs 14.40 per hour. MTNL has been trying to encourage students and others to surf the net during off-peak hours by lowering night tariffs. For instance, its "unlimited night browsing plan" allows free browsing between midnight and 8 a.m.