We can relate to ratan singh and his parents more as it is. This will surely make them less bitter and vindictive. Even the blood transfusion did not look fake or dramatic. Well handled.
As for anandi going to Brijesh's house alone and also at that point of time is quite dangerous knowing that brijesh is a murderer(known to us only). But her finding the ladies' purse may give some insight into Brijesh which fact can be exploited by the defence. Plus Ram singh seems to be one loyal worker who is also ready to help shiv. There are no dearth of loyal workers like him but they usually wont lift a finger to help. They will be more interested to serve the new master.
The SP's behaviour is strange. First he was not ready to meet anandi and when he met her with lawyer, he behaved like a helpless fool.
Rasika seems to be misled by brijesh from the beginning. He seems to be her mentor with a firm grip on her and her life.
The main player seems to be Brijesh, not rasika. She must be his puppet.