The position of planets in certain houses leads to their strong weakening. They lose their vitality and therefore become unable to express their functional and natural characteristics. This position is known as Marana Avastha of the planet, which literally means a state like death. Marana Avasthas for planets are: Sun in 12th house, Moon in 8th house, Mars in 7th house, Mercury in 7th house, Jupiter in 3rd house, Venus in 6th house, Saturn in the 1st house and Rahu in the 9th house from Lagna. The planets themselves, being thus positioned, become Marana Karakas or significators of death and bring great devastation into the life of the native. When such a planet is conjunct and/or aspected by a malefic or hostile planet, or is in a debilitated sign, it will cause great distress.
Pandit Sanjay Rath notes that