Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
देयं सप्तनदे श्राद्धं मानसे वा विशेषतः / महाकूटे ह्यनन्ते च गिरौ त्रिककुदे तथा
deyaṃ saptanade śrāddhaṃ mānase vā viśeṣataḥ / mahākūṭe hyanante ca girau trikakude tathā
In Saptanada—especially at Manasa—one should offer śrāddha; likewise at Mahākūṭa, at Ananta, and on Mount Trikakuda.