India
Nearly all PIP awards are being reassessed a year in advance of the current award ending.
Although you have reported your conditions as worsening there may still be questions as to how you are affected on a day by day basis, unless you can provide addition evidence and testimony to answer those questions then it's likely that you will be required to attend a face to face.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
