Whisk together the yogurt, ginger, garlic, paprika, coriander, garam masala, lime juice, salt and pepper in a large bowl.
Add chicken and coat with the yogurt mixture. Cover and refrigerate overnight or at least 4 hours.
Preheat oven to 450°.
Remove drumsticks from marinade and discard the marinade.
Put chicken drumsticks on a parchment-lined baking sheet, and bake in the center of the oven about 20 minutes, turning once, until chicken is no longer pink inside.
Notes
Drumsticks are equally good cold and are great for picnics.