BARC Updated its Data Universe in June 2018.
This is BARC's own survey, which will help the measurement body make changes to its universe estimation. The survey was carried out between November 2017 and March 2018. It covers 300,000 respondents across 4,400 towns and collects data on TV ownership, connection type, language preferences and other media consumption habits
Around 197 Million means 19.7 Crore Households in Indian have TV Connection. From this aporox 3 Lakhs households have BARC TRP Meter.
Colors channel was doing brilliant when this data was not updated earlier. Till IPL Colors Channel was No.1 in List but after the universe updation channel suffered in TRP.
This means the new data added included those households where Colors Channel has less popularity.
I hope all got the answer regarding TRP data and how it is calculated.