A yputuber threatened me that he will filled a case against me for extortion

hello I am From India I used to work as a YouTuber's manager. And I had access to that YouTuber's channel. One day that YouTuber misbehaved with me and fired me. So I removed his number and gmail from his channel access to take revenge and added my gmail and number. Then he begged a lot to return his channel, but I told him that now this channel is legally mine, so I will not return the channel to him for free, I can sell him the channel for 9000 rupees. After that I continued to argue with him. After 8-9 hours I got a call from cybercrime and police threatened me and said they will arrest me. I did not return the channel to him. Then the YouTuber started blackmailing me that if I don't give him back his channel he will file a case against me and arrest me, I got a little scared, then he told me that if I give him back his channel He will take back what he did and withdraw all complains . Then I gave him back his channel, but after returning the channel he is blackmailing me that he has filed a case against me and now he will arrest me by police for extortion case and ramson case. But I didn't take over his channel by myself, he gave me access to his channel himself a few months ago, and I wanted to sell his channel to him, I didn't ask him for money for any other reason. And I got scared and returned his channel and didn't take any money, but he is threatened and blackmailing me of arresting me. Have I legally committed any crime for which I can be arrested? And what should I do now if I am likely to be arrested or have committed a crime unknowingly by me? please help i am totally frustrated.