Officially, you need to visit engineering colleges surrounding Pune or contact TPOs and provide relevant information. You have to convey your message "LOUD AND CLEAR" to the students and freshers. Probably, you will find freshers who would love to spend a couple of months gathering knowledge through practicals. Honestly speaking, final year students neither have 6 months' time nor can they spend 6 months carrying out their internship due to various activities scheduled during this semester, including Employability Training Sessions, Placements, etc.
If you are interested in visiting a few colleges in Gulbarga and Chennai, please do let me know. I will connect you with the college authorities.
With profound regards,