Purohit in kashi for pitrukaryas

According to our Vedic scriptures, after visting a tirtha kshetra, one is obliged to perform necessary rites and rituals like vrata (devotion and pious observance) and Shradh Karma (paying homage to ones ancestors) for the fulfillment of the fourfold purpose of our lives: Dharma, Artha, Kama and Moksha