user: Question: Which district had SC reserved and 169 Constituents?
Columns: ['Constituency number', 'Name', 'Reserved for ( SC / ST /None)', 'District', 'Number of electorates (2003)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['166', 'Shujalpur', 'None', 'Shajapur', 177272.0]
SQL:

assistant: SELECT "District" FROM "Table" WHERE "Reserved for ( SC / ST /None)" = 'SC' AND "Constituency number" = '169';