Your Kundali needs to be discussed in detail as there are many things not encouraging in your Birth chart. The present Mahadasha of Rahu is going on with antradasha of Ketu till September 2016. Thereafter you will enter the period of Venus. This period is strong for marriage, but your planets are weak and need to be strengthened.
Which Puja and Upay you have been doing?
Blessings,
Navneet Khanna
Astrologer