Yes, you can apply for seats in IITs for M.Sc. Chemistry if you have completed your graduation from a foreign university.

Eligibility Criteria:
To apply for M.Sc. Chemistry in IITs, you need to meet the eligibility criteria set by the institutes. The general eligibility criteria include:

1. Educational Qualification: You must have completed a Bachelor's degree in Chemistry or a related field from a recognized university.
2. Minimum Marks: You need to have a minimum percentage or CGPA in your undergraduate degree as specified by the respective IIT. Generally, a minimum of 55% marks or a CGPA of 6.0 out of 10 is required.
3. Entrance Exam: You must clear the entrance exam conducted by the IITs for admission into the M.Sc. Chemistry program. The entrance exam may vary depending on the IIT, but the most common exam is the Joint Admission Test for Masters (JAM).

Application Process:
To apply for M.Sc. Chemistry in IITs, you need to follow the application process outlined by the respective institutes. The general steps involved are:

1. Online Registration: Visit the official website of the IIT where you wish to apply and register yourself online by providing the required details.
2. Fill the Application Form: Complete the application form by entering your personal, educational, and contact details accurately.
3. Upload Documents: Upload scanned copies of your passport-sized photograph, signature, and other required documents such as mark sheets, certificates, etc.
4. Pay Application Fee: Pay the application fee online through the available payment modes.
5. Submit the Application: Review the application form for any errors or omissions, and then submit it online.

Selection Process:
The selection process for M.Sc. Chemistry in IITs generally involves the following steps:

1. Entrance Exam: Attend and qualify the entrance exam conducted by the IITs. The exam assesses your knowledge and aptitude in Chemistry.
2. Merit List: Based on the performance in the entrance exam, a merit list will be prepared by the IITs.
3. Counseling: Shortlisted candidates will be called for counseling, where they will be allotted seats based on their rank in the merit list and availability of seats.

Conclusion:
In conclusion, if you have completed your graduation from a foreign university, you can apply for seats in IITs for M.Sc. Chemistry. However, you need to meet the eligibility criteria, clear the entrance exam, and follow the application process outlined by the respective IITs. It is important to check the specific requirements of the IIT you are interested in to ensure a smooth application process.