How Bairavaa songs leaked?

How Bairavaa songs leaked?
The leak of Bairavaa audio shocked Vijay fans. They were planning celebrations for 23 December for the launch of the audio.
However suddenly they were out yesterday.
Lahari Music that bagged audio rights for a big price, clarified, ‘We are extremely feeling bad. Due to some technical issues on iTunes, #Bairavaa album went live. We took it down as soon as we noticed it. As iTunes office is shutdown for few weeks, they made live as per previous audio release date though we sent the new updated date via mail. We are trying our best to make live all lyrical videos asap. Thank you for all the support fans’.