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Begin with the batch. Before deciding on any session, write down what you already know. How many students are there, and in which departments? Which roles are most of them aiming for? What went wrong for the previous batch, as far as the cell remembers? Where do students usually fall short: resumes, speaking, explaining projects, the written test? This does not need a survey. The people in the placement cell usually know more than they have ever written down, and the act of writing it down shows what is still unknown.
Then fix the dates that cannot move. When is recruitment expected to begin? When are the exams, practicals and holidays? When do students leave for internships? Place these on a single calendar and look at what is left. In many colleges, what is left is smaller than expected, and that is useful to know before promising anything.
Work backwards from the first company visit. The last thing students should do before a visit is practise for that company's selection process. Before that comes the practice of the basics: speaking, explaining a project, taking part in a group discussion. Before that comes the resume, because every other step starts from it. Putting the steps in this order, and giving each one its own slot, gives the cell a shape for the months. The shape matters more than the number of sessions.
Cover the whole batch, not the volunteers. This is the hardest part and the one that makes the most difference. Open sessions are filled by students who were going to prepare anyway. The students who most need a step are often the ones who do not come. If a session is important, say so, and make attendance expected. Tell students early, tell them why, and ask department heads and class coordinators to help. If a student misses a session, decide in advance how they will catch up.
Do fewer things, and do them properly. A cell that runs ten sessions in a month tends to run each one in a hurry. A cell that runs four, and leaves time between them for students to act on what they heard, tends to get more out of each. Choose the steps that matter most for your batch. For many batches these are a resume review, practice in speaking, practice in explaining a project, and a mock interview. An employer talk is useful when it is prepared for, so that students arrive with questions.
Ask volunteers and speakers to explain, not to sell. Working professionals can help a great deal, but only if the session is about the students. Agree this in advance with every speaker. A speaker may explain their work and how their company looks at fresh graduates. A speaker should not use the session to promote a product, a course or a service.
Keep a record as you go. It need not be complicated. For each session, write the date, who attended, what was covered, and what the volunteers noticed. A page per session is enough. This record is how the cell knows afterwards what was done, and it is what a new coordinator can read next year. Without it, each batch begins again from nothing.
Leave room to repeat. Plan the calendar with a few weeks held back. Some sessions will go badly: a room that was too small, a speaker who did not turn up, a topic that students did not understand. Having time to repeat a session, or to run a second round for students who missed it, is worth more than an additional topic.
Finally, decide who is responsible. In a busy cell, anything that belongs to everyone belongs to no one. Name one person who holds the calendar and the record, and one person on the faculty side who helps with attendance. If outside volunteers or an organisation are helping, name one contact on each side. Most plans that fall apart do so because nobody was sure whose job it was to follow up.