Step 1: Recall Kerala's formation date.
Kerala was officially formed as a state on November 1, 1956, under the States Reorganisation Act, which reorganized state boundaries along linguistic lines.
Step 2: Calculate the 75th anniversary year.
Adding 75 years to the year of formation: 1956 + 75 = 2031. This is Kerala's Platinum Jubilee year of statehood.
Step 3: Confirm the answer.
Kerala is set to celebrate the 75th anniversary of its formation in the year 2031. \[ \boxed{\text{2031}} \]