Ganga is really a caring mother...just that she is unable to get the better of TTS at times as he dominates her completely - or rather she allows herself to be dominated...
She was so considerate towards Pintu when Babloo was screaming his lungs out at him. She told him to be a bit more softer in his pitching and she really cared for Pintu.
It is a different thing that Babloo never listened.
Later when BD wanted the engagement rings to be exchanged in presence of the pandit at that very moment, she goes to Babloo to ask him to come down for the occasion. Babloo does not want any of these rituals to be followed...but she tells him very nicely that may be his second wedding and he must be missing Sargam through those functions - but for Pinky it was her first wedding and he needed to care for her sentiments too... I thought she as really sweet in making him understand...