On the day of my wedding feast (waleemah) my uncle(mother's brother) died, so we cancelled our waleemah. Its one and half year now since that incident and I still didnt arranged the waleemah again.
Is it necessary to have waleemah?

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.

According to the view of the majority of the scholars organizing a Waleemah (marriage banquet) is a Sunnah and not an obligation, and this is also the opinion we adopt in Islamweb. Moreover, the Waleemah should be organized after the consummation of the marriage according to the view of the majority of the scholars .

However, some jurists, like the jurists of the Shaafi’i School of jurisprudence, stated that it is permissible to organize the Waleemah even after a period of being married.

Therefore, it is permissible for you to organize the Waleemah of your marriage after a period has passed since your marriage but if you do not wish to do so, then you are permitted to this effect because as we previously explained it is not an obligation to organize the Waleemah.

Allaah Knows best.