CREATE TABLE table_13086 ("Constituency number" TEXT, "Name" TEXT, "Reserved for  (  SC / ST /None ) " TEXT, "District" TEXT, "Number of electorates  ( 2009 ) " FLOAT)

What Number of electorates (2009) has a District of mathura, and a Name of mant?
SELECT MIN("Number of electorates (2009)") FROM table_13086 WHERE "District" = 'mathura' AND "Name" = 'mant'
SELECT MIN("Number of electorates (2009)") FROM "table_13086" WHERE "District" = 'mathura' AND "Name" = 'mant'