Finally list of selected teams for ACM ICPC Amritapuri regional is out.
Here is the official list of selected teams — https://icpc.amrita.ac.in/2019/teams-selected-for-onsite-contest/
Maximum number of teams from any single institute is 9, and from following institutes —
1) Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar
2) Indian Institute of Technology Roorkee
3) Indian Institute of Technology, Varanasi
4) International Institute of Information Technology, Hyderabad
Moreover 8 teams selected from Indian Institute of Technology Kharagpur.
Here is the list of selected teams institute wise — https://docs.google.com/spreadsheets/d/149-lDzoCbtvJV_P-eWEE4a10wZGdXEOboVEve09PQqs/edit#gid=313585947