Kotak Mahindra Bank — Looking for immediate relieving

Address:

Banglore

I am working in kotak Mahindra bank from last 2.9 years, I got new offer from reputed company with good hike and due to urgent project requirement they are asking me to join immediately but my current not agree to reduce my notice period ..I try to convince my manager but not no use ..kindly please any one help me on this.current I m in notice period they asking me to join at 19 th April .