Creating multiple sources of income is a very good idea.
Since your investment amount is just 3k per month, it would be good to invest it in one or two Mutual Funds, starting with tax saving ELSS funds. Further breaking this up is not advisable. Check out Tax Saver options at Jama.co.in
Invest in you career and learn new skills so that you can put them to use and generate additional income. Some options are part time teaching, writing blogs, photography, digital marketing, tuitions. As you upskill yourself, you will generate more income.
