With the invention of Television in the past and the internet recently the traditional radio has died a silent death. The shape that it still exists in is FM radio. But unfortunately, the quality of stuff that these FM channels broadcast is mostly trash. If you are a poetry/ghazals lover, these 2 online channels broadcast some brilliant stuff. Check them out.
Mirchi Mehfil – https://gaana.com/radio/radio-mehfil
Radiocity Ghazal – http://www.radiocity.in/radiocity-ghazal
Apart from these two, FM Gold channel of All India Radio broadcasts (in NCR, not sure about other cities) a ghazals programme called “Andaaz-e-bayaan” in the evening from 5:30 to 6. You can listen to it on FM radio (106.4 in NCR. So now they swapped the frequencies. This program is broadcast at 101.1 same time), online at http://allindiaradio.gov.in/Default.aspx or through mobile apps http://allindiaradio.gov.in/mobileapp/Pages/Default.aspx