Add water to cover by 2".Bring to a boil, then reduce heat to mediumand simmer until chickpeas are tender,about 45 minutes.
Drain; set aside.
Meanwhile, heat oil in a large heavy potover medium-high heat. Season lamb withsalt and pepper. Working in batches, brownlamb on all sides, about 4 minutes per batch.
Transfer lamb to a medium bowl.
Add onionto pot; reduce heat to medium, season withsalt and pepper, and sauté until soft andbeginning to turn golden, about 5 minutes.
Add chopped garlic, Ras-el-Hanout, andginger. Stir for 1 minute.
Add tomatoes andlamb with any accumulated juices. Bringto a boil.
Add 2 1/2 cups stock. Return to aboil, reduce heat to low, partially cover, andsimmer, stirring occasionally, until lamb istender, about 1 hour 30 minutes.
Stir in chickpeas; simmer until heatedthrough, about 10 minutes. Stir in apricots;simmer until heated through, about 5minutes. Season with salt and pepper.
Spoon couscous onto a large, shallowplatter, forming a large well in center. Spoontagine into center.