Siddh Pithika Stotra used for Pitru moksh request to the The Supreme Power Mataji Bhagvati Aadya Shakti- Mataji Ambaji- Kuldevi mataji. It’s given in Shree Devi Bhagvat . People use special in the Bhadra- full moon day to Amavasya, or every Amavasya of whole year, or 108 times/ 11 times are getting great results & benefits. This is proven method given in Sanatan Dharma