Remedies for Rahu Kaal
To avoid ill effects of Rahu, the best option is to avoid starting anything new during Rahu Kaal. Start your new venture just before the start of Rahu Kaal or just after the Rahu Kaal has ended.
Mantra
Om Viprachitti putra
Simhika putra
Om Navagraha Rahuya Namah
Gemstone
Gomedh or Gomedhaka (Hessonite) is the gemstone associated with Rahu.