Rahu and Ketu beej mantra

Both are shadowy planets, and it is said both can give substantially good or bad results. The people who just believe in astrology are much afraid of Rahu and Ketu Bad-Mahadasha. Followings are their mantras to neutralize their bad effects.
Mantras for Rahu

“Om raam rahve namah.”
“Om Dhum Ram Rahave Namah.”
“Om Bhram Bhreem Bhrom Saha Rahave Namah.”
[Gayatri mantra or Rahu] “Om Sookdantaya vidmahe, Ugraroopaya dhimahi, tanno Rahu Prachodayat.”

Mantras for Ketu

“Om kem ketve namah.”
“Om Hum Kem Ketave Namah.”
“Om sraam sreem sraum sah ketave namah.”
[Gayatri mantra fork Ketu] “Om Chitravarnaya vidhmahe, sarparoopaya dhimahi, tanno Ketu Prachodayat.”