To be precise: refers to Vedic astrology, and "Yagya" (or Yajna) refers to a Vedic fire sacrifice. A "Jyotish Yagya" would therefore typically mean a fire ritual prescribed based on astrological chart analysis (e.g., for planetary pacification, Graha Shanti , or Nakshatra specific rites).
To be precise: refers to Vedic astrology, and "Yagya" (or Yajna) refers to a Vedic fire sacrifice. A "Jyotish Yagya" would therefore typically mean a fire ritual prescribed based on astrological chart analysis (e.g., for planetary pacification, Graha Shanti , or Nakshatra specific rites).