Her appointment will see Paul Bursche, who has been managing Sony Music's corporate comms since June via his new consultancy, leave the company at the end of January.
Vidyalankara, who previously worked at Sony Music UK as a press officer, starts her new role next month.
She is currently acting comms manager/senior publicist at the BBC. For the past six years she has led campaigns for the corporation’s biggest entertainment formats including Strictly Come Dancing, Eurovision, Children in Need and The Voice UK.
Prior to that, Vidyalankara led the comms team at BBC Radio 1 and 1Xtra on brands such as Radio 1’s Big Weekend, In New Music We Trust, 1Xtra Live and BBC at Glastonbury.
Sony Music UK said the appointment reflected the group’s "commitment to bolster a strong and progressive executive team".
CEO Jason Iley said: "I am delighted to welcome Indy back to Sony Music. She is a seasoned and accomplished communications professional with an excellent track record of achievement.
"Indy has been very much at the sharp end of corporate and reputation issues in her time at the BBC and has a very creative and strategic approach. I look forward to her becoming a key part of our talented executive team as we take Sony Music from strength to strength."
Vidyalankara said: "It’s a great honour to be appointed to this role working with Jason who has shown himself to be a visionary leader. This is an exciting opportunity and I look forward to returning to Sony Music UK at this important time in its history."
Bursche told PRWeek that he is looking to grow his consultancy during 2015. Sony was its first client.