Combine cabbage, celery, pomegranate, dates, and scallions in a large
bowl. Set aside.
In a separate bowl, whisk together lemon juice, vinegar, honey, salt, pepper, and garam masala to blend. While continually whisking, slowly
drizzle in the oil until well-blended and emulsified.
Pour dressing over
cabbage mixture. Toss to coat with dressing. Marinate for at least 4
hours or overnight.