The last Saturday of Sawan is on 6th August. Along with Sawan Monday, Saturday also has special significance in this month. According to Skanda Purana, all the problems and sorrows are removed by worshiping 4 deities on Saturday of Sawan.
Narasimha is considered to be an incarnation of Lord Shri Hari Vishnu, worshiping these deities on Saturdays of Sawan can remove all money related problems. On this day, if a person takes a bath with sesame paste, then it is very auspicious for him because as you know, Saturday is the attack of Shani Dev and oil is very dear to Shani Dev. In the worship of Lord Narasimha, by offering khichdi made of urad lentils, he is quickly pleased.
Lord Hanuman is considered to be the twentieth and Rudra incarnation of Shiva. Worshiping them on Sawan Saturday destroys evil forces. You must have heard that.. (bhoot pichash nikat nahi aave , mahavir jab naam sunabe) ghost vampire should not come near, Mahavir when the name is heard.
Worshiping Lord Hanuman on Saturday gives victory over the enemy. There is peace both mentally and physically. The stalled work gets completed without any hindrance.
Lord Bholenath is considered to be the guru of Shani Dev. It is said that after getting the boon of Shiva, Shanidev got the title of justice and Lord Shiva is very dear to Shani Dev. Worshiping Shani Dev on Sawan Saturday can avoid his wrath.
Every day of Sawan is dedicated to Bholenath.Shravan is very dear to Shiva. The person who worships Lord Shiva with a sincere heart in Sawan showers immense grace of Shiva on those devotees and takes away all his sorrows and brings happiness. Must do Jalabhishek of Shiva on Sawan Saturday.
According to the Puranas, the worship of all these deities on Saturdays of Sawan is very virtuous. After worshiping these deities, make donations to the needy on this day.It is said that there is no greater virtuous than charity, and the devotees who do charity religion quickly become pleased with God. It is believed that there is happiness in married life, increase in wealth, child happiness and helps in reducing the inauspicious effects of Shani Dev.
https://en.myjyotish.com/en/astrology-blogs/hariyali-amavasya-2022-do-these-remedies-on-this-day-and-get-auspicious-benefits