Dear Ganesh ,

I hope you are doing well !

First of all Payable mean able to paid or you should pay ,if we go through your query " Narsimha Reddy Eng college medchal for m.tech thermal Eng in alotment clg fee showing 28k " its mean the college fees is 28k and " payable fee 0"  mean till now you had not deposited any money .

I hope you will understand

Thanks