Under the impugned letter, the petitioner was informed that the provisions of the ESI Act, 1948 (for short ‘the Act’) would be implemented in all the areas falling within the limits of Revenue villages of Kalwakurthy with effect from 01-02-2007 and accordingly, the petitioner was called upon to initiate action towards the registration of its unit as well as all the coverable employees in compliance with the provisions of the Act in respect of the petitioner’s factory from 0102-2007. It is stated that on submission of prescribed form in the Regional Office, the petitioner will be allotted an Employee’s Code Number and thereafter the employees and their family members will be provided with medical benefits and medical care through the Medical Practitioner specified thereunder. The petitioner was also requested to obtain declaration forms in respect of the individual employees. That apart, the petitioner, being the principal employer, was called upon to remit the contributions in respect of all its employees and also in respect of the employees engaged through immediate employer within 21 days of expiry of the wage period. The petitioner was also required to submit a return of contributions with effect from 01-02-2007.