Pujaa as we know it in the west, particularly amongst Caribbean Hindus, describes the ancient hindu practice of Yagya. This is so because the format and instruction surrounding the Yagya is still very evident in this 'pujaa'. Pujaa in general means worship and the Yagya, then, is the preferred method or ceremony with which to accomplish the act of Pujaa. For ease of reference however, Yagya will only be used here as a definition.
Navgraha or Vedi pujaa is the predominant format for most Pujaas by Hindus in the diaspora. This pujaa is still performed by families across the globe. Navgraha pujaa is a format that covers the worship of Ganesha, Devi, Panch-Loka and Navgraha Devtaas. These pujaas are done on four separate areas of the vedi.
Added to this format of Navgraha or Shodasopchaara, devotees include Ishta Deva or Murti pujaa for specific goals or spiritual advancement. When performed with Navgraha Pujaa, Deva Pujaa makes the ritual or ceremony complete. These two main aspects should be included in all pujaas. Some examples of Ishta pr Murti pujaa are: Hanuman, Shiva, Durgaa, Lakshmi, Sri Raama, Satyanaarayana and Gangaa.
Link: Items Required For Devtaa Pujaa/Jhandi