16th Dec 2016, The start of the Dhanurmasam is marked by the entry of the Sun in the Dhanur Rashi (Sagittarius) called the Dhanuh Sankramana(Change from one Rashi to other Rashi); hence the name Dhanurmasam for this period.

What’s special of this month?
The month Margasirsha or Margazhi or Dhanurmasam promotes spirituality among the people.