Ardharātrapūjā & some Tāntric Yantras

This text contain a text on certain ritual called Ardharātrapūjā and some diagrams of Tāntric Cakras and Yantras. On the 2nd page of the 4th folio there is a description of the medicine of stomach pain in Bangla. The Ardharātrapūjā text is contained on the 2nd page of the 2nd folio. Extent and format of original and physical characteristics: 4 Folios; Complete MS.; Extremely fragile. The original size of the folios are 42X9 cm.