Use the range operator. 
open (RUNSET, "<text.txt" ) || die "Can't access test\n";

while (<RUNSET>) {
    if (/^\*DESCRIPTION$/ .. /^\*END$/) {
        # do any substitutions
    }
}

close RUNSET;

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/prakash

In reply to Re: Search for a BLOCK of text and selectively replace by PrakashK
in thread Search for a BLOCK of text and selectively replace by Rhodium

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