This post primarily meant to provide the Durga Puja 2014 dates. The Durga Puja traditionally begins on the Mahalaya in Ashwin month, a day when Chandi Stotram is recited as an invitation for Goddess Durga to descend to earth. In 2014, Mahalaya is on September 24 (in Bengali Calendars). Durga Puja festivities and rituals begin on the Maha Saptami day.
September 24, 2014 - Shubho Mahalaya
September 30, 2014 – Maha Shashti
October 1, 2014 – Maha Saptami
October 2, 2014 – Maha Ashtami or Mahashtami (Ashtami till 8:29 AM on Oct 2 then onward it is Navami)
October 3, 2014 – Mahanabami or Mahanavami (Navami till 6:24 AM on October 3 then onward it is Dasami)
October 3, 2014 – Vijaya Dasami or Vijayadashami (Dasami from 6:25 AM on October 3 to 4:02 AM on October 4)
On the Shashti day, Kalash is prepared and it is kept in the house and with it begins rituals and celebrations.
Mahalaya is also the day when Shradh is offered to the departed souls.