How to withdraw my complaint filed with SHRC ?

What is the reason for seeking to withdraw the complaint?

SHRC is not a court, but a fact finding body. The Commission has authority to continue with the inquiry notwithstanding your change of mind.

It is not your whim and fancies that at one point of time you are filing a complaint before the Commission and subsequently intending and submitting to withdrawi it.

Let the law take its own course or face consequency.

Which state SHRC?  From your name, it should be either Telangana or Andhra Pradesh.  Andhra Pradesh state is not having any HRC, Lokaykta etc., APHRC is not having a Chairman or office,, and no one is aware of the fate of the petitions being filed for last two years.  If you have sent such withdrawal letter, ignore for the present.  Keep that registered post receipt pasted to the withdrawal letter and down load the delivery status from indiapost website.   In case if there are summons, just send another xerox copy stating that the complaint was withdrawn.  They will be the happiest persons, as they can show a disposal case even without hearing.