Surely either Tata Sky's satellite insat 4a has trouble or they are working on some way to increase channels as today afternoon some major work was on, signals kept dwindling all through the day.
Keeping fingers crossed, keeping in mind that tata sky works out on so many technological advancements each time , it will not be a surprise if they activate vertical polarity on insat 4 a as they are in immense pressure to add new channels