Accenture Notice Period Buyout

Hi ,
I am Manu, i am working for Accenture in Bangalore. Its more than 2 yr in the same organisation, recently i got offer from very good company but they are asking me to join with in 40 days but in my current company notice period is 90 days.

I put my exit request for 35 days which is 55 days less than my notice period.
I convinced my supervisor, DU lead and Project HR Rep.
they all approved my early release but last approval which was pending from case manager (kind of HR) , has rejected this stating that company policy says you need to serve 90 days.

I tried my level best to convince her but she din't agree for the same.
there is no dependency on me from project end, i explained this as well,

I am ready for notice period buyout, even in my terms of employment clause also states that

"You may at any time terminate your employment by giving the Company ninety (90) calendar days prior written notice. Upon you providing such notice, approval of any request for early release and/or any kind of waiver will be granted at the sole discretion of the Company and will be subject to terms and conditions of the Company, including and not limiting to the recovery in lieu of notice period not served."

So i am not getting how to proceed on this. Kindly suggest on this

Regards,
Manu

Can anyone help me out in this.... or if i leave organisation without serving 55 days what all problems it may leads to except work transition as it is already done

Hi Manu,
I need to ask is my LWD in exit tool is Aug and I want in July and my case manager is okay with the short fall and buyout. How can I proceed for making my LWD in exit tool as july.