Unable to delete the solr entry, what am i doing wrong?

I am using http://code.google.com/p/solr-php-client/ to communicate with the solr from PHP. Every thing is working fine, but Delete.

I am using the deleteById function which in turn creates

<delete fromPending=开发者_开发问答"true" fromCommitted="true"><id>13967</id></delete>

request, and it returns true.

But in actual entry is not being deleted. I don't understand what is wrong in it..

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did you Commit?