Britain's Amir Khan on Wednesday hailed the decision to allow professional boxers at the upcoming Olympic Games in Rio de Janeiro, saying he would love to represent the country of his parents' birth, Pakistan.

Khan, born and raised in Bolton, England, won a silver medal in the lightweight category of the 2004 Athens Olympics before turning professional a year later.

He is 31-4 as a pro welterweight, with 19 KOs.

Wednesday's ruling by boxing's governing body at an extraordinary congress in Lausanne, Switzerland, that paves the way for pros to fight at the upcoming Olympic Games in Brazil rekindled Amir's dreams of glory.

"It's a decision which I welcome," Khan said at a press conference at a promotional event in Karachi.

"It will help boxers and if I am permitted as per rules and from my promoter then I would love to compete for Pakistan."

His father, Sajjad Khan, hails from Matore village near Kahuta, close to the capital, Islamabad.

He migrated to Britain, where Amir was born in 1986.

Khan said he has roots in Pakistan and wants to serve the country.

"I will be very happy if I can compete in Olympics. I want to serve Pakistan," said Khan, who has been scouting boxing talent in the country for the last few years.

Khan's younger brother Haroon's dreams of representing Pakistan at the 2012 London Olympics after being snubbed at home were blocked by boxing's governing body AIBA because he had represented Great Britain at the junior level.

Haroon represented Pakistan in the 2010 Commonwealth Games in Delhi, India where he won a bronze medal in the flyweight division.

Seven Pakistani boxers will compete in the last qualifying rounds in Baku, Azerbaijan, but they stand little chance of reaching the Rio Games.

Pakistan's last appearance in Olympic boxing came at the Athens Games in 2004.

Pakistan Boxing Federation secretary Iqbal Hussain said he was thrilled at the prospect of Amir representing the country.

"I have to check the rules whether Amir can compete or not, but it would be a huge boost for us if it happens because he is our hero," Hussain told AFP.