Pratipada Shraddh (Prathami Shraddha) is the first day of Pitru Paksha. In 2015, Pratipada Shraddh date is September 28.
Mahalaya Paksha begins on Krishna Paksha of Ashwin month in North Indian Hindi calendars and it is Pratipada in Krishna Paksha of Bhadrapada month as per Marathi, Gujarati, Telugu & Kannada calendars.
Pratipada Shraddh Tharpana Puja helps those who feel that marriages, puja, pitru rituals, festivals & other auspicious rituals are not happening properly in their family.
Gaya, Kashi (Varanasi), Rameshwaram, Haridwar, Prayag Sangam (Allahabad) & Rishikesh are the popular places for Pitru Paksha Shraddh rituals.
It is to note that, Mahalaya Shraddh Paksha begins on 28 September and ends on 12 October with Mahalaya Amavasya or Sarva Pitru Amavasya.