Step 1: Pointed gourd is dioecious and propagated vegetatively to preserve the sex and quality of the mother vine.
Step 2: In the main growing regions, mature vine is coiled into a bundle and partly buried to root at several nodes at once.
Step 3: This specific technique is named the Lachhi method, distinct from generic terms like moist lump or straight vine cutting.
Step 4: The correct answer is Lachhi method.