Lord Sathyanarayana is another form of Vishnu (the creator). Pournami puja is usually done on the days of poornima and ekadasi of every month. It is auspicious to worship the lord during these days. As per  puranas lord Vishnu himself suggested sage Narada to perform this puja for the benefit of mankind in skandapuranam.

Who should do this Puja: Head of Organizations or institutions who are looking for execution of successful projects or ventures without any obstacles.

मङ्गलम्भगवानविष्णुः, मङ्गलम्गरुणध्वजः। 
मङ्गलम्पुण्डरीकाक्षः, मङ्गलायतनोहरिः॥

When you should do this Puja: Starting of any new activity like Project, Joint ventures, contracts  (or)  for  overcoming any obstacles or delays in businesses.

Benefits of this Puja: The Puja removes all obstacles in the progress of business   

Prasaadam: Chakrapongal (or) Kesari – 200Gms