Tanthra Samuchayam: This script was compiled by Chenaas Narayanan Nambootiripadu during A.D. Fifteenth Century. The famous book defines the implementation of Vastu in Temples construction.
Tanthra samuchaya composed by Chennas Narayanan Namboothiri is believed as among the authorised texts in the Kerala kshethra tantra. It's scripted in Devanagara lipi( sanskrit ) on with Vivarana, explanation & Vimarshana, comments.