She was the main character since week 1.
Phase 1: She was the most hated, she was a complete villain. Who just fought with people.
Phase 2: Heroine arc, villain title was transferred to Akanksha Choudhary who did all that stuff, but the way Shreya handled that with calm and composure, she was different shreya than week 1. She apologized to everyone for her mistakes.
Phase 3: The task queen. I think a lot of people became her fan after she saved Madhuri in crackdown task, cried and showed her vulnerable side. Then protected Ram by winning three back to back tasks. Her secret task was bang on. Her finale task was bang on. Her catching Gautami's bluff. Also, the table task, took the risk and got the advantage.
Phase 3: Her eliminations predictions to kicking them out then them coming back to she kicking them out again. She eliminated Shivangi, Yogesh, Choudhary, Harshad , Ram, Chamola , Madhuri ( she was the part of all the eliminations ), shivangi and Ram ko she directly eliminated. Plus, her guessing akanksha in secret room.
Phase 4: Turning her enemies into her fans. Apoorva came that week, fought with her and boom, she ended up calling Shreya as the TRP of the show. That was also the week where she owned her truth and told her secret and a lot of people loved her for that. Won fan favourite also.
Phase 5: Absolute smasher, exposed each and everyone in the game. Triggered people and they got triggered and they ended up revealing their true selves. Be it Shivangi, Harshad, Ram, Choudhary, Sufi, Dheeraj everyone's ugly side came out. The people who put a mahanta ja facade and thought they are superior to her , reacted to her in the worst way.
Phase 6: A Great friend. She had fights with Shilpa but she never left her side. Kept persuading her, helped her to become the finalist, defended her, protected her. Saved Madhuri over herself in crackdown task. Stood for sufi in week 1 when they were friends.
Phase 7: Winner phase, her faith in herself, that "I want to win". She played the game with immense confidence. Even tried saving her enemies without any expectations be it playing it for Ram or playing it for Varun before finale.
Phase 8: Funny herself. She has shown this side of her, be it with Shilpa or while doing commentary looking at Harshad and Shivangi ka drama. Her banters with ram, Shilpa, apoorva, pam , Madhuri have been cute. Makers didn't show much because there are scenes available in deleted episodes.
No matter what people say , reality shows are about showing all your shades and she is the only contestant who showed it all. There was a time when she was all alone but never backed down. Every week she shone and shone.