A possible concise summary is:
The text is a transcript of an episode of a crime show, where the C.I.D team investigates a murder that took place in a safe room. The safe room belongs to RK, a businessman who makes safes and invites thieves to try to break into them. The victim is Arvind, the owner of a diamond that RK used as bait. The C.I.D team finds out that the murderer is Suveer, one of RK's assistants, who is also the son of Dinkar, a thief who was jailed because of RK and Arvind. Suveer had an accomplice, Amar, who changed the code of the safe and lured Arvind to the crime scene. Suveer also killed Amar and Sushant, a guard who was bribed by them. Suveer locked two C.I.D officers, Daya and Purvi, inside the safe room with Sushant's corpse, hoping they would suffocate. The C.I.D team managed to catch Suveer and get the chip that could open the safe room and save Daya and Purvi. Suveer confessed his motive and was arrested.
Here are the key facts extracted from the text:
1. A group of thieves, including Dinkar, Sidhesh, and Arpita, were invited to steal Rs. 10 crores and the Rosetta Diamond.
2. The owner of the diamond, Arvind, was found dead, and the police investigation revealed that he was strangled to death.
3. The safe room where the money and diamond were kept had a secret door, and the CCTV footage showed that no one entered the room between 12 a.m. and 4 a.m.
4. However, it was discovered that the CCTV footage had been tampered with, and the police suspected that one of RK's assistants was involved in the murder.
5. The investigation led to the discovery of a second safe room, and it was found that the lock code had been changed.
6. The police discovered that Amar, one of RK's assistants, had been involved in the murder, but he was found dead with a burned hand.
7. The police found a chip in Amar's hand, but it was burned and couldn't be used to open the safe.
8. The investigation revealed that Suveer, RK's assistant and Dinkar's son, was the mastermind behind the murder and the robbery.
9. Suveer had planned the whole thing to exact revenge on RK and Arvind, who he believed were responsible for his father's imprisonment.
10. Suveer had used Amar and Sushant, another guard, to help him with the plan, but he killed them when they became too greedy.
11. The police eventually discovered the truth and arrested Suveer.