In the promo they have shown that 4 of the doctors were found guilty including Ridhima.If other promo is to be taken into consideration ,I think Anjali will commit d mistake, but Ridz will take the blame on her as she feel that it is the time to repay off the gratitude made by Dr Shashank's family for her n her mother thats why Ridhima was shown standing outside d basketball court with teary eyes as if she wants to tell Armaan smthing but she cant do so Bcoz on one hand is Armaan who thinks her to be guilty, on the other hand is her Sister.
If she support her sister, she will lose Armaan as well as her job n if she dont support her sister Anjali will be kicked out of SANJEEVANI for being an insincere doctor.Tabhi it is said in the starting that "takdir karegi ek aur faisla".