Question: what is the name when the constituency number is 150?
SQL: SELECT "Name" FROM "2-18516978-1" WHERE "Constituency number" = '150';

Question: what is the total number of electorates (2009) when the name is govindpura?
SQL: SELECT COUNT("Number of electorates (2009)") FROM "2-18516978-1" WHERE "Name" = 'govindpura';