Kanya Puja, or Kumari Puja, is the worship of young virgin girls which is performed during Chaitra Navratri, Sharan Navaratri (September – October) and Durga Puja. Here is a brief Kanya Puja procedure along mantra in hindi text in pdf format. The How to do Kumari puja text is provided by Kamakoti mutt.
Link – Hindi Navratri Kanya Puja Procedure
The puja is performed for achieving peace and prosperity. It is also performed for the well being of family members. People also perform it for early marriage, to solve property related problems and also for getting jobs and success in business.