The drying behavior of onion was studied by four drying methods viz., open sun drying, direct and indirect solar cabinet drying and solar cooker drying. It was observed that the rate of moisture depletion in onion flakes was high in the beginning and it declined later. There was inverse proportion between drying rate and drying time. The entire drying took place at falling rate period only. The products obtained were evaluated for bulk density, drying time, rate of drying, rehydration characteristics and changes on colour, flavour and appearance. The onion dried under direct solar cabinet dryer The rate of drying in direct solar cabinet dryer was comparatively faster than indirect solar cabinet dryer (took 25 h of drying time to dry up to 8 % moisture content, db) but the product obtained was of poor quality, dull in colour (pink/white) and poor rehydration capacity (3.27 after 4 h in cold water and 4.33 in boiling water after 25 min). On the other hand the performance of indirect solar cabinet drying was found to be slower (took 27 h of drying time to dry up to 8 % moisture content, db) but the product had better rehydration ratio (4.02 after 4 h in cold water and 4.7 in boiling water after 25 min), appearance, colour (dark pink) and flavour in comparison to other drying methods. Among all four drying methods studied, the indirect solar cabinet drying was found to be most suitable for drying of onion.