Preserved Lemons refer to sliced lemons cured in a salt and lemonjuice mixture that is used for flavoring dishes and foods. Preserved Lemons are popular in Moroccan and Middle Eastern cuisine/cooking.
Pulao refers to a delicately flavored rice, sautéed in ghee and flavored with whole spices like cumin, cloves, and many others. Just like the other Indianfoods and dishes, there are many Pulao varieties.