This was the explanation given about trp calculation
Television Rating Point (TRP) is a tool provided to judge which programmes are viewed the most. This gives us an index of the choice of the people and also the popularity of a particular channel. For calculation purpose, a device is attached to the TV set in a few thousand viewers' houses for judging purpose. These numbers are treated as sample from the overall TV owners in different geographical and demographic sectors. The device is called as People's Meter. It records the time and the programme that a viewer watches on a particular day. Then, the average is taken for a 30-day period which gives the viewership status for a particular channel.<br/><br/>In the case of a TV advertisement that is aired 5 times reaching 50% of the gross audience with only 60% in the target audience, it would have 250 GRPs (= 5 x 50) -- ie, GRPs = reach x frequency - TRP in is this case should be 60% out of 250 GRPs = 150 TRPs - this is the rating point in the target, 60% of the gross rating.
So if you have a trp device,you can affect the ratings.
The trps of IPKKND take a beating because of the 8pm time slot...that is one of reasons that was given in a magazine.
Please feel free to correct me if my explanation is outdated.thanks😃