Hi Lakshmi. Well, you can continue your study after BCA or you can make career in related jobs. Options for both ( further study+ job) have been listed as follows:

Further Study:

Masters in Computer Management.

Masters Degree in Information Management (MIM)

G-CAT Master.

Postgraduate Diploma in Computer Applications.

Post Graduate Program in Corporate Studies (PGPCS)

Postgraduate Diploma in Management (PGDM)

Program in Information Security Management.

Career options:

information office

computer programmer

computer support service specialist

computer scientist

computer systems analyst

database administration

Information systems manager

software developer

software publisher

systems administrator

teacher or lecturer 

If willing to work in government organisation , then , after BCA one can join govt. banks as clerks, probationary officer, or short service commission for Army or Navy, IAS, IPS, CBI, RRB or UPSC.