Just as Gopalji said it is only Shanti . So I think no harm in Celebrating it.
Only ," Theertha Yathra " like Thirupathy,Kasi, Manasarovar,Haridwar to be avoided.
But far that You can celebrate Bheemaratha Shanti. You are really Blessed to Celebrate it. Their Asirvatham will be a Great Fortune in your life.