Question: I have done MCA and I want to continue my studies suggest me some course which will be helpful in my future
Answer: Considering that you have done your MCA, it shows your inclination towards the IT sector. It would be better to now go for some certification course.
Although you need not necessarily take up further studies but if you so desire then go for the MCSE/
CCNS/ERP/SAP etc, depending upon which field you want to take your career.