Srirangam temple is one among the 108 Divyadesams which is popularly known as Bhooloka Vaikuntam. Srirangam is situated about 8 kms from Thiruchirapalli and is called as Periya Kovil covering an area of about 156 acres. The following is the detailed article of about Srirangam temple written by Sri Ramesh..
What you have mentioned regarding suprapatham for lord ranganathar is not happening. In srirangam in the morning and night Tirupaliyeuchi & Sayanam happening and this is also done through veena playing from a family called veena family. Veenai Rangarajan & his family
very good and informative stalapuranam.how great it is to know various aspects of sreeragam and episodes narrated in the valaru book