Well she is the one who has never been appreciated . In episode 5 she said she is being treated differently from her 4 mins older twin. And this is wrong ! Maybe it could be one of the possibility that they upbring the twins as normal twins where parents usually dresses them same same. They expected them and they were till they felt twins are similar. When they went to college , their parents realised that they are no longer similar and wanted susheela to follow garima thing which they till say apni behen ki parchayi ko follow kar ...
Dp needs to understand that twins ka matlab yeh nahi dono ek jaise ho .Ab alag hai dono it's not their fault he never understood twins and their personality ..
DP and Kusum were never perfect parents hence the girls learned to cope differently ~ Garima with her white lies, and Susheela with her boxing punches. They are each other's only support 💕 except for Puttu who selflesly loves them. The discrimination is because they cannot bear for the girls to be different 🙄