Hey seema!

Any discrepany in your admit card is a matter of concern . And i totally understand your concern.

As there is change in your subjects and you are sure that you filled social science only while filling the application form, so you should immediately get tje names of subjects changed. Because a change jn these subjects name can cause an issue on the date of examination.

To get this changed , you should send a mail to the CTET helpline with explaining your situations and a photo of the your application form details and your admit card. 

To know the contact helpline of CTET , follow the given link :

https://ctet.nic.in/cms/public/view.aspx?page=16

Hope it helps!