How did ancient Indian catamarans improve?

Ancient Indian catamarans improved through advancements in design and construction techniques, utilizing local materials like wood and bamboo to enhance buoyancy and stability. Skilled craftsmen developed more sophisticated hull shapes and joined multiple logs to create larger, more seaworthy vessels. Over time, these innovations allowed for better navigation and increased capacity for trade and fishing, facilitating maritime activity along the Indian coastline. Additionally, the incorporation of sails improved maneuverability and efficiency in travel.