what happens went a person is taken back to jail for violation of parol only onwes 7 months 2 days

Well, see the following.  You may get a longer sentence.  Depends on the type of violation and probably the underlying conviction.  Try www.attorneypages.com or your public defender to discuss options.

A.   § 410.10  Specification of conditions of the sentence.
 2.    Commission  of  an  additional  offense,  other  than  a traffic
  infraction,  after  imposition  of  a  sentence  of  probation   or   of
  conditional  discharge,  and  prior  to expiration or termination of the
  period of the sentence, constitutes a  ground  for  revocation  of  such
  sentence  irrespective  of whether such fact is specified as a condition
  of the sentence.

B.   § 410.20  Modification or enlargement of conditions.
    1.    The  court may modify or enlarge the conditions of a sentence of
  probation  or  of  conditional  discharge  at  any  time  prior  to  the
  expiration  or  termination  of the period of the sentence.  Such action
  may not, however, be taken unless the defendant is  personally  present,
  except  that  the  defendant  need  not  be  present if the modification
  consists solely  of  the  elimination  or  relaxation  of  one  or  more
  conditions.    Whenever  the  defendant  has not been present, the court
  shall notify the  defendant  in  writing  within  twenty  days  of  such
  modification  specifying  the nature of the elimination or relaxation of
  such condition or conditions and the effective date thereof.     In  any
  such  case  the modification or enlargement may be specified in the same
  manner as the conditions originally imposed  and  becomes  part  of  the
  sentence.
    2.   The procedure set forth in this section applies to the imposition
  of an additional  period  of  conditional  discharge  as  authorized  by
  subdivision three of section 65.05 of the penal law.

C.   * § 410.30  Declaration of delinquency.
    If  at  any  time  during  the period of a sentence of probation or of
  conditional discharge the court has reasonable cause to believe that the
  defendant has violated a condition of the sentence, it may  declare  the
  defendant  delinquent  and  file  a  written declaration of delinquency.
  Upon  such  filing,  the  court  must  promptly  take   reasonable   and
  appropriate  action  to  cause the defendant to appear before it for the
  purpose of enabling the court to make a final determination with respect
  to the alleged delinquency.
    * NB Effective until November 1, 2009
  * § 410.30 Declaration of delinquency.
    If at any time during the period of a  sentence  of  probation  or  of
  conditional discharge the court has reasonable cause to believe that the
  defendant  has  violated a condition of the sentence, it may declare the
  defendant delinquent and file a written declaration of delinquency. When
  the court receives a request for  a  declaration  of  delinquency  by  a
  probation  officer,  it  shall  make  a  decision on such request within
  seventy-two hours of its receipt of the request. Upon filing  a  written
  declaration  of delinquency, the court must promptly take reasonable and
  appropriate action to cause the defendant to appear before  it  for  the
  purpose of enabling the court to make a final determination with respect
  to  the  alleged  delinquency  in accordance with section 410.70 of this
  article.
    * NB Effective November 1, 2009