Submit your portfolio to reputed coordinators, Agencies or Fashion designers and set up an appointment. Some Modelling agencies may have a time each week where a new model can go and see an agent. It is advisable to see several agencies before committing or signing a deal to anyone. Choose an agency/coordinator carefully so you can stay with them for sometime as constantly changing agencies gives you a reputation of being flighty and unprofessional. Once you get a negative reputation it is difficult to sustain in the field, especially in the beginning. Another way to enter into this career is to apply for the contests sponsored by magazines, cloth manufactures, cosmetic companies etc and participating in beauty pageants.
Once the agencies approve of the portfolio, they may call you for an interview. They may have a photo session. If they like you they will promote you among the clients and will look after legalities of the paper work for the job. The agency will charge the client and pay you after deducting their commission. Be professionally at your best on the job, that may help you get more assignments from the client. Get the pictures from the session you have done and add them to your portfolio. Maintain contacts- keep in touch with your agency/coordinator, visit them once in a while. Read also.. Career Option- Modelling