This is the jeevasamadhi of Achudanandha Swamigal.
There is place to sit and meditate in this hall. You can go into meditative states here effortlessly.
How to get there:
The temple is located 20.7 kms South of Vellore.
Map: https://goo.gl/maps/VjaTcNjyJxMLCiAw9