Rates of Major Allowances to Defence Personnel Rates of Major Allowances : Concurrent Admissibility of Allces. Following combination of allces can be claimed concurrently:- (a) Siachen and Highly Active Fd Area Allce (HAFA). (b) HAFA and High Altitude Area Allce (HAA). (c) Field Area Allce … [Read more...] about Rates of Major Allowances to Defence Personnel