Cook rice according to package directions.
Meanwhile, using a fork, pull chicken meat from bone in shreds. Transfer chicken to a medium saucepan. Add chick peas, tomatoes, sour cream, curry powder, and cumin and mix well. Set pan over medium heat and bring to a simmer. Simmer 5 minutes to heat through. Remove from heat and stir in cilantro. Season, to taste, with salt and black pepper. Serve chicken curry over rice. Garnish with cilantro.