1. Sir, ESIC has its established procedure for submission of accident reports as well as payments of Temporary Disablement Benefits (TDB) to employees/insured persons who met with accidents during and in the course of employment. I think, you should have reported the matter to your employer about the accident occurred and entry should have been made in the Accident Register maintained, if any, by your employer.
2. The appropriate office for payment of TDB to you, if approved by said department is Branch Office of ESIC to which you are attached. Even if some permanent disability remains after your recovery, then if accident is not approved by ESIC, then you will not be entitled for Permanent Disablement Benefit (PDB) from said office. You can get the address of concerned office from the ESIC Identity Card.
3. When you have obtained medical treatment from private sources, I am not sure whether you can get the reimbursement of said expenses at this stage because ESIC has its own referral and medical reimbursement procedure. You can see the copies of such instructions from the website of ESIC.
4. I think, at this stage, you can complain in writing to the Branch Manager, ESIC Branch Office with copy to Sub-Regional Office, ESIC intimating that your employer had not submitted the accident report and further request them to ask the employer to submit accident report immediately and pay you benefits (TDB as well as PDB) as admissible to you. You can also submit copies of details of medical treatment, if any, obtained. With best wishes.