When you buy Pasandas get them thin sliced about 2- 3inches wide 4 inches in length.
Two medium onions that you have sliced should be fried brown and crushed by hand. Now mix well all the above ingredients and the beef with your hand.leave to marinate for about 6-8 hrs in the fridge.
Then put the meat in the skewers( folded in layers). Close held together.put the meat over heated charcoal turning it regularly till meat is barbecued from all the sides.
Serve it hot with paratha and raita.