Kindly refer to your query and its contents carefully. You mention that you are in civil contracting and registered with... You have only 2-3 employees. How is it possible to undertake civil contracting work with 2-3 persons? It indicates that the nature and amount of work may be very small. Alternatively, you may be undertaking contracts and executing the work through temporary workmen/subcontractors.
You need to consider the strength of such workmen when calculating the total number of employees.
Furthermore, if you do not have the required strength for EPF/ESIC registration, there is an option to pay the contributions of these employees (including temporary/petty contractors) under the Principal Employer's code. Currently, corporates, government, and government undertakings enroll contractors/vendors who have all the necessary registrations.
Obtaining registration under EPF/ESI/PTax is not a challenging task. It is simple and also in your interest. Consult local consultants; they will provide you with proper guidance.
Regards, Pramod Thakar