Chicken Tikka (grilled)

After going to an Indian buffet last week, I wanted to try my own hand at chicken Tikka (not masala). The recipe I used was an amalgamation of several ones I found online:

• 3/4 cups of regular fat yogurt
• 2 tablespoons red masala (homemade paste)
• 1 teaspoon turmeric
• 1 tablespoon garam masala
• 1 tablespoon olive oil
• pinch of salt (red masala already has a fair bit)
• 1 lb chicken drumsticks

1. Mix Marinated and put in a zip lock bag with chickenr
2. refrigerate for... 8-24 hours? ( I can't remember how long I went for.)
3. Grill over high heat until browned and for about 15 (?) minutes total.

Review: super tasty; a few too many charred spots, though. Maybe let more of the marinade drip off and baste with it during the cooking process?