Which amendment gave constitutional status to urban local bodies?

Explanation

1. 01

   The 74th Amendment of 1992 inserted Part IXA, covering municipalities.

2. 02

   The 73rd, passed in the same year, covers panchayats, which are rural.

3. 03

   The pairing is the thing to remember: 73 is rural, 74 is urban, and both are 1992.