I dont know why even so called mature writers make this mistake of treating caste and religion in the same vein. There is a huge difference between marrying out side caste and marrying out side religion. For god sake! when a Hindu boy/girl marries either a christian girl/boy or a Muslim, the main difference would be both will be worshiping different gods. Each will have to learn to celebrate other's festivals. Imagine Hindu visiting a Mazjid. It appears to me that way too much weightage is being given for veg/non-veg preference. In many Hindu House holds, though the caste people may be predominently non-veg. But some of its members may be veg. It happened in my own sister-in-law's case. She was eating non-veg in her Ma's house. But gave up meat upon her marriage. (arranged marriage within the caste) becasue her husband's family did not consume meat. My colleague's wife does not eat/cook non-veg for him. (caste people eat non veg). It is not a major think. But if a Hindu girl married a Muslim house hold, she may be even asked to convert and the problem will start when she is forced forget her Lord Ganesha!. Inter caste marriages hardly pose any problem because the culture would be almost same.