Hajj can be categorized into following three forms as per the method of performing.
Hajj-e-Tamattu: It is to be performed Umrah during the Hajj Season and then on the day of Trawih, the pilgrims get into the state of Ihram for Hajj i.e. pilgrims wear separate ihram for each pilgrimage.
Hajj-e-Qiran: It makes intention to perform Umrah and Hajj together. Pilgrims remain in the state of Ihram after Sae. Pilgrims should follow the footstep of Prophet Muhammad (SAW) and slaughter animal as all the rituals of Hajj are combined together.
Hajj-e-Ifrad: It is to declare your intention to solely perform Hajj. The pilgrims preserve himself in the state of Ihram till the date of Sacrifice. He is not required to offer animal sacrifice for him.
While all forms of Hajj are rewarded by Allah as promised, Hajj-e-Tamattu is considered to be the most recommended method of performing Umrah by the Prophet Muhammad (SAW).
In this type of Hajj, one is to perform Umrah during the months of Hajj i.e. Shawaal, Dhul Qa’dah and Dhul Hijjah. Also, pilgrims perform Hajj in the same year with an animal slaughter at the point of Mina on the day of Eid-ul-Adha. The pilgrims may continue their normal activities in routine dress between Umrah and Hajj. It further involves Tawaf and Sa’e to be done twice once for Umrah and second for Hajj.