You haven't clarified Nathrao's query, "What have they charged earlier when employees have left without notice?" However, please also note that even if there may have been a precedent of employees leaving after paying the notice period (NP) amount, your manager or company need not take the same route for you too. If they want to, they can find ways to not give you the same advantage.
Are there any specific reasons why you don't want to serve the NP apart from your manager's attitude? If the sole reason is the manager's attitude, then frankly, I suggest you bear with it and learn to handle such individuals. One always encounters such people everywhere; only the scale of temper and scope of damage varies. What if the next job also has such a manager? Will you run away from there too, and for how long in your career?
If there are no other very specific reasons, then I would suggest you complete the NP and leave properly with the relieving documents in hand. You will always need the documents for your career track records.
If the reason is that the new company wants you to join ASAP, then it's imperative that you handle things appropriately. Every company wants a new employee to join as soon as possible but relieve as delayed as possible. This scenario occurs everywhere and in every sector, except, of course, when the company is very pleased to see the employee leave. You need to make it clear that your NP is 2 months and, although you will try, you can't assure that the NP will be reduced. It all depends on your interview performance (how well you did) and how you handle the situation, whether they will agree to wait for you or not.
All the best.
Regards,
TS