This is an order of Indian Court, Embassy of other country can not interfare.
here are 2 ways in this context:
1) You may approach the court (which mentioned this condition while granting bail) for getting the condition waived. This is usually possible if police investigation is over and charge-sheet has been filed. Mention in your petition that you will appear in person in the court as and when required by the court during trial. In such scenario, the court usually waives-off the condition. And once this is done, you need not take court's permission to go abroad whenever you do so again in the future.
2) If chargesheet is yet to be filed, you may approach the trial court requesting you to allow to go abroad for a specific period (mention the duration of your travel). You may mention that this travel is required for your 'bread-and-butter' purpose (use this term). If possible, provide office documents which shows that your office is asking you to go abroad. Also mention that you will appear in person in the court as and when required by the court. In such scenario, the court usually gives you permission to go abroad for that specific period.