Gangireddu is a sacred bull, which is decorated with beautiful clothes and ringing bells. Haridasulu are the people of a cast who are dedicated to receive charities from other people.
Gangireddu and Haridasu are the two important aspects of Makar Sankranti.
Haridasu makes gangireddu (bull) to dance. The scene clearly depicts bulls obedience to his master. Haridasu sings songs and gangireddu dances according to his masters song.
As Sankranti is celebrated as a harvest festival, cattle is also worshipped during it. Mainly, the bull (Gangireddu) is worshipped.