Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_3 (district VARCHAR, weblink VARCHAR, college_or_campus_name VARCHAR)

### Question ###
In which district is anna university - tiruchirappalli campus, whose website is http://www.annauniv.edu, located?

### Accurate SQL ###

SELECT district FROM table_name_3 WHERE weblink = "http://www.annauniv.edu" AND college_or_campus_name = "anna university - tiruchirappalli campus"