Millar, 32, was banned from cycling for two years in 2004 after admitting to using Erythropoietin (EPO.)

He has since campaigned against doping in sport and has returned to top-level professional cycling.

Commonwealth Games Scotland (CGS) had banned him from competing for life in the Commonwealth Games, but have now been persuaded to let him compete in Delhi next year.

Jon Doig, the chief executive of CGS, said: "The CGS board felt that since his return to cycling David has become an active campaigner and educator about doping in sport and has gone to great lengths to rehabilitate himself and share his experiences with others in an attempt to promote the anti-doping message.

"David has now been cleared to compete for Scotland in Delhi subject to achieving the necessary performance selection standards."

Millar said: "I am absolutely delighted with the decision.

"It would be an honour to race for Scotland at the Commonwealth Games in Delhi and to give something back to the country that has given me so much.

"I am proud to be a Scot and feel that I have been supported incredibly through the bad times as well as the good by Scotland.

"I made mistakes as a younger athlete in a dirty sport, and I will have to live with those mistakes for the rest of my life, but I have changed and I know I bring something beneficial to not only cycling, but also sport as a whole.

"I have been so pro-active in my fight against doping because I believe I can make a difference and I also believe that the mistakes I made as an athlete were fully preventable.

"If the example I now give and education I provide can prevent a younger version of me from making the same mistakes I made, then I could not ask for more."

Millar, who was born in Malta to Scottish parents, should not struggle to meet the standards required for entry and he will look to compete in several events.

The 32-year-old is not eligible to ride at the Olympics as the British Olympic Association take a hard-line stance against drug offenders, but he has represented Britain in other major championships and has competed in the Tour de France since serving his ban.

Millar has offered guidance on drugs to UK Sport, British and world cycling bodies and the World Anti-Doping Agency, and CGS have confirmed he will deliver an anti-doping seminar to young Scottish athletes as a condition of his return to the Commonwealth Games team.

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