Hi Gopi,
In addition to what our friends Ajmal and Soumya said, also check the following Methods of Recruitment, it might be usefull to you.
Companies recruit their personnel through various recruitment methods, depending on the position to be filled, the urgency of the requirement and other factors.
Campus recruitment offers the most common gateway to the job market for final year students, especially in technical or professional fields. It usually takes place around February/March and organizations visit the campuses of IITs, IIMs, ITIs and other prestigious colleges and universities on a regular basis to recruit personnel. Prior to the placement week, the organizations put up presentations known as PPT (pre placement talks) highlighting the benefits of working for them, to try, identify and attract the best talent. The placement cell of the institutions encourage final year students to apply to the companies they have short listed, and these are then sent to the participating organizations.
Individual companies in the form of tests, group discussions and interviews undertake the selection process. Companies put in a lot of effort to attract promising candidates and competition is intense. In the top line engineering and business schools, the companies vie for top billing in the first two days of the placement week. Job offers are given within this week to the student. In general, a student is debarred from receiving more than three offers. In the second line institutions, the ratio of students and number of offers may vary. when the student decides and makes his/her selection, the placement cell informs the company.
Summer placements between three to six months are part of the curricula of business schools and engineering colleges students. During such placements, they are attached to companies to obtain real life work experience. For business school students, their choice of elective subjects can be a determining factor in the type of company being targeted. A number of firms pre-empt the placement week and PPT, by offering employment informally to the summer trainees at the end of the assignment, and following this up by completing formalities formally. The candidate enjoys the opportunity to experience the work culture of the organization from the inside.
Employment advertisements are being taken out in newspapers, magazines, specialized journals, etc. by a large number of companies to enable the employer to reach out to a large target audience. Advertisements may be for various positions, from trainees to top management level professionals. The print media has realized the need to categorize these advertisements and most major newspapers are taking out supplements on a regular basis.
E-recruitment provides access to a worldwide databank of jobs, on line application and information resources through the Internet. One of the benefits of e-recruitment is the provision for swift feedback and follow up.
External sources like university placement cells, headhunting services and consultancy firms are being increasingly resorted to by companies for meeting their recruitment needs for tracking the right candidates. Placement agencies maintain an exhaustive database of candidates for various levels to identify and screen candidates for their clients for a negotiated fee.
Employment exchanges offer candidates registered with them for recruitment.
The organization itself may be a source for candidates to fill in vacancies through transfers and promotions.
Employee referral schemes or personal networking for some firms are the preferred means of recruitment, as they can select employees after judging their ability to fit into their work culture.
Hope it might be usefull to you.
Regards