If a post-graduate college for girls has 42 seats available in the BCA (Bachelor of Computer Applications) program, it suggests the following:

• Availability : There is a substantial number of seats still open, indicating a chance for more students to enroll.
• Opportunity : This could be an opportunity for interested students to apply, especially if they are from reserved categories or if there is less competition this year.
• Application Process : Ensure you check the application deadlines and requirements to secure a seat.

If you need specific information about admission criteria, eligibility, or application procedures, it's best to contact the college directly or visit their official website.