If your employer doesn't release pending dues in India, you can take the following steps:

1. Check Employment Contract: Review your employment contract to understand the terms and conditions related to payments, notice periods, and dues. Ensure you have clear documentation of the dues owed.

2. Send a Reminder: Politely remind your employer about the pending dues through written communication, such as an email or a formal letter. Include details of the outstanding amount and request a specific date for payment.

3. Contact HR or Payroll: If your company has an HR or Payroll department, reach out to them for assistance. They may be able to expedite the process or provide information about the status of your dues.

4. Labour Commissioner: In India, you can file a complaint with the local Labour Commissioner's office. They can mediate between you and your employer to resolve payment disputes.

5. Labour Court: If the issue persists, you can file a case in the labor court. You may need to engage a lawyer experienced in labor law for this process. Be prepared to provide evidence of your employment and the outstanding dues.

6. Collective Action: If multiple employees are facing similar issues with the same employer, consider joining together to address the matter collectively. This can increase your bargaining power.

7. Stay Persistent and Document: Keep detailed records of all communication, including emails, letters, and payment receipts. Persistence and a well-documented case can be crucial in resolving the issue.

Remember that Indian labor laws can be complex and vary depending on the state and industry. It's advisable to seek legal counsel early in the process to ensure you take the appropriate steps for your specific situation.