Rahu is a Rakshash,son of Kasyapa rushi.By chanting this mantra,will pleased Rahu graha.
Mantra
Pranamami sada rahum, soorpakaram kireetinam,
Saimhikeyam karalasyam, lokanamabhaya pradham., 1
Neelambara sira pathu, lalatam loka vanditha,
Chakshushi pathu may Rahu, srothre thwardha sareeravan., 2
Nasikam may dhoomravarna, soolapanir mukham mama,
Jihwam may simhika sunu, Kantam may katinamgrika., 3
Bhujangeso bhujai pathu, neela malyambara karou pathu,
Pathu vaksha sthalam manthri, pathu kuksheem vidhunthuda., 4
Katim may vikata pathu, ooru may sura poojitha,
Swarbhanuni januni pathu jange may pathu jadayaha., 5
Gulphou grahapathi pathu, padhou may bheeshanakruthi,
Sarvanyangani may pathu neela chandana bhooshana., 6
Raheridham kavacham rhudhi davasthudham yo,
Bhakthya padathyunu dinam niyatha suchi sanu,
Prapnothi keerthimathulam sriyamrudhi maayura,
Aaroghya mathma vijayam cha hi thath prasadath., 7
Ithi Sri Mahabharathe Drutharasthra jayantha samvade drona parvani rahu kavacham sampoornam,