For the BSc CVT (Cardiovascular Technology) course at Calicut Medical College, the 4 seats refer to the total number of students that can be admitted to the program in a year.

This doesn't necessarily mean that there will be only 4 students in a batch. The batch size might be larger, but the number of seats allocated for BSc CVT is limited to 4.

Regarding the seat allocation, it's not explicitly stated that the 4 seats are reserved only for girls. Typically, medical colleges follow a reservation policy that allocates seats for different categories, such as:

- General merit

- SC/ST

- OBC

- Physically handicapped

- Management quota

However, without specific information, it's unclear whether these 4 seats are reserved for a particular category or are open to all eligible candidates. To confirm, you can contact Calicut Medical College directly or check their official website for more details.