Lord Shani Dev Maha Mantra - Very powerfull mantra

||Nilanjan Samabhasam Raviputram Yamagrajam ChhayaMartand Sambhootam, Tam Namami Shanaishcharam|| निलान्जन समाभासं रविपुत्रं यमाग्रजम। छायामार्तंड संभूतं तं नमामि शनैश्चरम॥ Meaning - I bow to Lord Shani, who has dark complextion and son of Sun and born to Chaya and brother of Yama , who moves very slowly.