Venkateswara Puja is dedicated to Tirupati Balaji or Venkateswara form of Bhagavan Vishnu. Here is Venkateshwara puja procedure in Hindi in pdf format. The pooja is based on the guidelines given by Kamakoti mutt.
Link - Venkateswara Pooja Procedure in Hindi
The puja is performed for peace, prosperity and happiness in family. It is also done for success in business and new venture. The popular belief is that success in Kali Yuga depends on the blessings of Venkateshwara.
The puja is ideally performed on Thursday or Saturday. The puja should be performed in the early morning hours.