Crippled infrastructure development and finance company IL&FS has claimed that if funds worth Rs 16,000 crore stuck with concession authorities were released on time, it wouldn't have landed in the mess it is currently in. In a letter to its employees, a copy of which is with PTI, Infrastructure Leasing & Financial Services (IL&FS), which earlier this month had defaulted on a Rs 1,000-crore loan from Sidbi, has claimed that around Rs 16,000 crore of group liquidity is stuck in claims and termination payments.