Have 1.5 lakhs in account. Don't know what to do with it.

I have around 1.5 lakhs in HDFC account which I got through internship during my Btech. Currently I have started working and allocated a portion of salary into mutual funds already. But I don't know what to do with this 1.5 lakhs. I dont know what is appropriate security I should invest this amount in. Can anyone help?

My current mutual fund portfolio -

1. PPFAS 15k monthly
2. ICICI Nasdaq 100 IF 3k weekly.