India head coach Igor Stimac pruned his squad to 31 members by showing the door to Sumeet Passi, Nandha Kumar, Redeem Tlang, Bikramjit Singh, Germanpreet Singh, and Vishal Kaith.
The squad will further be trimmed and only 23 players will get on the flight to Thailand.
India will take on Curacao on June 5 in their first match in King's Cup.
INDIA 31-MAN PROBABLE SQUAD
GOALKEEPERS: Gurpreet Singh Sandhu, Amrinder Singh, Kamaljit Singh.
DEFENDERS: Pritam Kotal, Nishu Kumar, Rahul Bheke, Salam Ranjan Singh, Sandesh Jhingan, Adil Khan, Anwar Ali, Subhasish Bose, Narayan Das.