Opinion of all in the society will be sought on the issue related to the opening of vault B, Subramanium told reporters after holding a meeting with the temple authorities here.
"Consultations will be held with general public, political parties and the Travancore royal family," he said.
Subramanium, who also inspected the sanctum sanctorum of the temple, said there was no damage to the main deity (moola vigraha).
Subramanium yesterday met the members of the Travancore royal family, who were opposed to the opening of vault B holding that it was against customs and century-old beliefs.
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Temple Managing Committee Chairperson and District Judge K Hari Pal, Executive Officer V Rathesan (IAS), temple priest E Satheesh Bhattathiri were among those present on the occasion.
The temple shot to fame after treasures worth crores of rupees were found when four vaults of the temple were opened in 2013.
Only vault B remains to be opened.
On July 4, a Supreme Court bench of Chief Justice J S Khehar and D Y Chandrachud was told by Subramanium that 'Kallara' (vault) B of the temple should be opened as it was closed "on the apprehension that there is some mystical energy".
The controversy over the administration and management of the historic shrine is pending in the apex court for the last few years in the wake of charges of financial irregularities.
The sprawling temple, an architectural splendour in granite, was rebuilt in its present form here in the 18th century by the Travancore royal family, who ruled southern Kerala and some adjoining parts of Tamil Nadu before the integration of the princely state with the Indian Union in 1947.