The post contains answer to questions “What is the difference between Hajj al Qiran and Tamattu? What is Hajj al Qiran and Tamattu? How to perform them.”
What is the difference between Hajj al Qiran and Tamattu?
Difference between Hajj al Qiran and Hajj al Tamattu in simple words is that in Hajj al Qiran pilgrims once enter in Ihram state cannot exile from it until Hajj is completed while In Hajj al Tamattu no such condition is present. In Hajj al Tamattu pilgrims after Ummrah can exile from Ihram state.
A person who performs Hajj al Qiran is known as Qarin and those who perform Hajj al Tamattu are known as Mutamatti.
Source: Above answer is based on information given in Hajj books and Wikipedia.