The demolition of the heritage structure, one of the nine 'kalmandapams' located on the banks of the temple pond 'Padmatheertha', had triggered widespread protests among devotees, right wing outfits and the Travancore royal family members.
Kerala State Nirmithi Kendra, entrusted with the renovation of the pond, would restore the structure to its past glory under the supervision of Archaeology Department officials.
Temple authorities here said the antique charm of the ancient structure would be maintained while restoring the dismantled 'kalmandapam'.
The work is expected to be completed within a month.