@jaya you are right. Someone is trying to frame Dev. But the question court ask is " Why". Why would someone want to frame Dev.
If Durga can prove conclusively that Dev is being framed and the only way to prove this in court without any doubt for court is to connect Dev's half baked attempts to collect evidence regarding Payal rape case and its results
Just see the trail of Dev's acts and its results. Stand alone they were comedy but connected they become a powerful tool to reopen Payal rape case
RTI files taken by Dev. Gets an anonymous call asking money to come to Vishnupur for info on Payal. Attack on his life. Again another dupe by telling Shaurya is in danger and another attack.
He goes after medical file. Show Payal photo to get the file. Goes to meet Payal. payal attacked and bed ridden
Goes after agnihotri. Agnihotri asks 15 crores for proof on Payal rape case. He raises money from his account and selling shares for evidence. Agnihotri disappeared
Dev confronts Raima on Payal rape case. Raima shot. Dev gets a message.
Everything is connected to Payal rape case. Attack on his life, he made a bait to attack payal and when nothing could stop him frame him in a false case and send to jail. Attack in jail and attack on Raima can be added evidence.
Durga has information though not fully on all the above activity of Dev which he did for collecting evidence.
If she makes the lawyer ask the right question she can very well direct the suspicion on people who wants to keep the lid on Payal rape case and most probably get Dev exonerated itself at the same time reopening Payal Rape case which is much needed.