hello aspirant,
Regarding hayagriva polytechnic college, There is an average scale pay ranges from 50k -80k  per month depending up on the qualification and experience.
for an HOD and lectures who are having a very good technical knowledge and he /she is very good and expert in skills, his /her average scale pay may increases to 1 lakh per month.
generally, The salary package in any college will vary according to their positions and status.
The salary package will be as high as more for administrative directors and other designations like vice chancellor and provice chancellor.
for further information, also college is looking for  HOD  and lectures, one can try for it.
hope it will be helpful for you,
thank you