Documentation is such a thing that any error or mistake in it whether minor or major is a matter of serious concern as it will create a mismatch every where and it will be difficult to move ahead for you with such dubious data.
Actually speaking the name, date of birth, gender, fathers name etc are the crucial elements of ones identity and any change in that is not admissible as you will face difficulty in future when you go for making your PAN card, Aadhar card, Voter card, Driving license etc .
Presently what you should do is approach your college/ university authorities and give an application for correction of your father's name from 'Jugal Kishor Sharma' to simply 'Jugal Kishor' in your graduation marksheet and certificate and request them to issue a corrected one. It may take some time as they may send it to university or college head office also other wise they will issue it from their level.Please remember, in future when ever you apply for any thing and fill a form, write your father's name as 'Jugal Kishor' only.
In case you are very much inclined to keep your father's name as 'Jugal Kishor Sharma' only in your graduation certificate and as well as in all your future documentations (like PAN, Aadhar etc) then there is another cumbersome procedure where you have to give advertisement in newspaper and other formalities to change your father's name from 'Jugal Kishor' to 'Jugal Kishor Sharma' and produce this documentation along with your X and XII class marksheet/ certificate every where every time. At this juncture I will not advise you to go for this cumbersome procedure and you better stick to the previous one as detailed by me in earlier paragraph.
Knowledge is power.