Satisfying Lord Shani includes abstaining from Alcoholic beverages and non-vegetarian food stuff, though providing sweet milk into a banyan tree. नीलांजनसमाभासं रविपुत्रं यमाग्रजम्‌। The mantras must be chanted with sincerity and devotion. The mantras can reduce the many sufferings and confer the benevolent grace of Shani Dev. If you want https://www.youtube.com/watch?v=vJdtAzVzxNk