themselves out as labourers if the need arose. It was due to the availability of these landless labourers that kings and landlords were able to execute major projects such as palaces, temples, mosques, anicuts (dams) and tanks. Because land was abundant and the population relatively sparse, no rent was charged on land ownership. Instead, landowners paid tax for cultivation, which amounted to up to one-half of all harvested produce. Under Hyder Ali and Tipu Sultan The Kingdom of Mysore reached a peak in economic power under Hyder Ali and Tipu Sultan, in the post-Mughal era of the mid-late 18th century. Tipu Sultan is credited with founding state trading depots in various locations of his kingdom. In addition, he founded depots in foreign locations such as Karachi, Jeddah and Muscat, where Mysore products were sold. During Tipu's rule French technology was used for the first time in carpentry and smithing, Chinese technology was used for sugar production, and technology from Bengal helped improve the sericulture industry. State factories were established in Kanakapura and Taramandelpeth for producing cannons and gunpowder respectively. The state held the monopoly in the production of essentials such as sugar, salt, iron, pepper, cardamom, betel nut, tobacco and sandalwood, as well as the extraction of incense oil from sandalwood and the mining of silver, gold and precious stones. Sandalwood was exported to China and the Persian Gulf countries and sericulture was developed in twenty-one centers within the kingdom. The Mysore silk industry was initiated during the rule of Tipu Sultan. Later the industry was hit by a global depression and competition from imported silk and rayon. In the second half of the 20th century, it however revived and the Mysore State became the top multivoltine silk producer in India. Under British rule This system changed under the subsidiary alliance with the British, when tax payments were made in cash and were used for the maintenance of the army, police and other civil and public establishments. A portion of the tax was transferred to England as the "Indian tribute". Unhappy with the loss of their traditional revenue system and the problems they faced, peasants rose in rebellion in many parts of south India. After 1800, the Cornwallis land reforms came into effect. Reade, Munro, Graham and Thackeray were some administrators who improved the economic conditions of the masses. However, the homespun textile industry suffered while most of India was