The International Siddhashram Shakti Centre in Harrow, London, under the guidance of HH Shri Rajrajeshwar Guruji, regularly organizes special spiritual events that include the chanting of 108 Hanuman Chalisa and Shani Mantra sadhana to alleviate adverse astrological influences. These gatherings emphasize community harmony, mental tranquility, and devotion, drawing a large number of participants.

Activities are conducted to counteract Shani (Saturn) dosha, frequently involving the recitation of Shani mantras alongside the Hanuman Chalisa.