In a mini food processor, combine the garlic, jalapeños and ginger and process to a paste. In a large nonstick skillet, heat the oil. Add the onions and cook over moderately high heat until sizzling, about 3 minutes. Reduce the heat to moderate and cook, stirring occasionally, until the onions are browned, about 7 minutes. Add the garlic paste and cook, stirring, until fragrant, about 2 minutes. Add the cumin, coriander and cayenne and cook, stirring, for 1 minute. Add the tomatoes and simmer over moderate heat until thickened, about 6 minutes. Add the chickpeas and water and simmer until the chickpeas are flavored with the gravy, about 8 minutes. Season the chickpeas with salt, garnish with the cilantro and serve.