Here is the another way using ref 


if(ref $Log_names{BM_light_test_00_} eq 'HASH' && exists($Log_names{BM
+_light_test_00_}{device_log}))
{
        print "Exists\n";
}

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In reply to Re: Checking existence in hash of hashes without adding entries by lakshmananindia
in thread Checking existence in hash of hashes without adding entries by Anonymous Monk

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