Ingredients :
7-8 Lobsters, Butter for basting. 
First marinate : 7 tsp Lemon juice , 21/2 tsp. Garlic paste, 2 1/2 tsp Ginger paste, 1/2 tsp Red chilly powder, Salt.
Second marinate : 1 cup Yogurt cheese, 1/4 cup Cream, 4 tsp Lemon juice, 1 3/4 cup Ginger paste, 1 tsp Ajwain, a pinch of turmeric powder, 1tsp. White pepper powder.

Method :
First Marinate - Mix all ingredients in bowl. Rub lobsters with marinate and reserve for 15 minutes.
Second Marinate - Put yogurt cheese in bowl. Add remaining ingredients and whisk. Rub lobsters with marinate and refrigerate for 1 hr. Skewer lobsters, touching but not overlapping. Place skewer on tray, to collect drippings. Roast in moderately hot tandoor. Remove and hang skewers over tray approx. 2 mts to allow excess liquid to drain. Baste with butter and roast again for 2 minutes. Remove from skewers. Baste with butter. Arrange on platter and serve hot.