As per the Indian Statute bonded labor system was long abolished and no bond can force any person to work against the employees wishes
1. As per section 27 of the Contract Act, 1872, any agreement in restraint of trade or profession is void. Therefore, any terms and conditions of the agreement which directly or indirectly either compels the employee to serve the employer or restrict them from joining competitor or other employer is not valid under the law.
2. The employee, by signing a contract of employment, does not sign a bond of slavery and, therefore, the employee always has the right to resign the employment even if he has agreed to serve the employer for specific time period.
3. However if any clause inserted for recovery of cost for training the employee at abroad , or any cost invested in specific training may be recovered from the employee. ( SC also given some judgments favoring to collect the actual expenses accrued irrespective of the agreed amount.) (Sicpa India Limited v Shri Manas Pratim Deb)
4. Nobody can hold you if you are willing to join another company provided proper notice should be given as per the company policy/standing order/agreement .
5. As per Sec 368 of Indian Penal Code if any person or institute holds back any document or any use any legal document or threatens any legal suits or actions and thus forces a person to perform any act against his wishes or which is illegal or wrong as per the statute of Law of the land.
6. The Supreme Court of India has clearly stated that no employee can be forcefully employed against his will, just because he has signed a contract with the employer. The court also has stated that the employer cannot hold back any personal document of the employees as they are earned by the employees and the company has no claim on the same.