There were indications before the sell-off of Royal Mail began of demand "really taking off", according to the chair of the business, innovation and skills select committee.
Labour's Adrian Bailey dismissed claims criticism of the sell-off was all in hindsight and told Good Morning Britain the Government failed to act on clear signs of high demand for shares.
"There were indications before the float that demand for these shares were really taking off. Institutional investors over-subscribed it by 24 times and retail investors...by seven times."
More top news
A former meat inspector has told ITV News that poor hygiene and ineffective regulations have left consumers at risk.
A man has been arrested in connection with the murder of a British adventurer in Brazil.
Mrs May has insisted that the Government is united on Brexit despite Boris Johnson's recent intervention.