Court marriages in Noida are conducted under the Hindu Marriage Act of 1954 and allow marriages between individuals of any caste, religion, or creed. Both parties must be at least 18 years old for the bride and 21 for the groom, cannot be currently married, and cannot be related within prohibited degrees. The document provides contact information for the Arya Bhawan office in Noida, Uttar Pradesh, which facilitates court marriages in the area.