Prothom Alo Editor Matiur Rahman inaugurated the month-long festival, says a press release.

J Ekram Hussain, deputy managing director of Rangs Electronics Limited, Sabur Ahmed, director, and other high officials of the company were present.

During the promotion campaign, customers will get coupons for buying Sony brand products worth at least Tk 5000 from any Sony Rangs showroom or dealers' showroom in the country.

The festival will continue till the day before the Eid-ul-Fitr. The draw of the coupons will be held on December 10 at the National Press Club. The winner will get a Proton Saga car.