The revised rates are effective from April 1, the company said on its website.
The monthly rental for the MTNL's broadband plan Fibre Thrill 4000 has been increased by about 25 per cent, while that of the VDSL plan by 19 per cent.
Both these plans are generally preferred by businesses.
After the increase, the monthly rental rate is Rs 4,999 for the Fibre Thrill 4000 plan, which offers download speed of 50 mbps up to 250 GB usage limit and 1.5 mbps thereafter.
In addition to this, MTNL has increased about 7-11 per cent in monthly rental of broadband plans offering a maximum speed of 2 mbps and minimum download speed of 1 mbps. General customers or home users prefer these plans.
The company has already raised its mobile internet-rack rates for subscribers in Mumbai by 33 per cent, which is from 2 paise per 10 kb to 3 paise per 10 kb effective February 1.