Prayes in Congregation
Question :

What prayers can one offer in congregation?

Answer :

It is permissible to offer the five daily prayers, including the Friday prayers, in congregation as well as the prayer of Signs (Ayat), prayer on the deceased, Eid prayers and the prayer of Istisqa (for the seeking of rain).

Eid-ul-Ghadeer
Question :

Can we offer the prayer of Eid-ul-Ghadeer in congregation?

Answer :

No, it is not offered in congregation.

Supererogatory Prayers
Question :

Can we offer the daily nawafil (supererogatory) prayers in congregation?

Answer :

Offering the daily supererogatory prayers in congregation is not legislated in the Sharia.