Arriving late and ignoring explicit instructions:-This is the first mistake that can give a negative impression. As you go for an interview, the interviewer spares some time to meet you. Your arriving late will probably disturb their work schedule

Try to reach on time and if you are getting late for any reason, make sure that you inform the interviewer. Also, make sure that you follow all the instructions provided to you to appear for the interview. Ignoring the explicit instructions shows your "I don't care" attitude.

Don't be a job beggar:-Approach the interview as a problem solver and not as a job beggar. It is not the beggars who are hired; it is the people who have a capability to solve the employer's problems, who are hired. The employer has a problem to which you have a solution, so it is a give and take relationship. Employers respect people who respect themselves.

Going without preparation:-Prepare yourself for the obvious questions. Not being able to reply to the general questions properly gives a bad impression. Make it a point to research the company and its business before you go for an interview.

Not analysing the job profile and requirements:-This is another big mistake that many candidates commit. If you do not take the time to understand the job profile and requirements properly, you cannot expect the questions the interviewer might have. Moreover, you will not be able to dispel the interviewer of the doubts s/he may have regarding your candidature on that profile.

Badmouthing your previous company:-During an interview, do not criticize your last employer. The prospective employer will try to relate himself to your last employer and your badmouthing can give them the impression that you are a misfit. Most employers try to judge your attitude through this question. Speaking negatively about your place of work might give them the feeling that you are not an easy person to get along with.

Telling lies about your candidature:-Remember that you have a right to remain silent over the things that you don't want to disclose. It is not necessary that you provide them the details of every inch of your career but make sure that you do not tell lies about your candidature. These lies may get you hired but they can be a big reason for you being fired as well.

Sounding money-minded:-Employers do not like people who switch jobs for couple of thousand rupees. Although money is a major attraction, do not talk about the salary and benefits before you are offered the job. let the interviewer begin the discussion on the salary.

Not asking questions to the interviewer:-Almost all interviewers give the candidate a chance to ask questions. This is something you can always expect. Prepare yourself to ask some intelligent questions about the company, business, your chances to grow in the organisation etc. By not asking questions you might give the impression of being uninterested or indifferent.