• Student's knowledge and skill level: Student's conduct in college( CGPA during placements).
• Student's conduct in aptitude examination and GD.
• Student's interpersonal and communication skills.
• Student's leadership and management qualities.
• Student's academic record.

All these aspects decide what package a candidate is offered during his/ her placements.

Now coming back to your question, the average package offered to the students of CSE and IT departments in Ahmedabad is around Rs.3,50,000 to Rs. 4,00,000 per annum. But do keep in mind that if you are a good engineer then you are most likely to get paid much more than this amount so focus your thoughts and actions on developing your skills.