Hello,sir i need help regarding engring.

Sir i m 12th student i got 51 in jee.sir i hv done my 10+2 frm mp bord and it dosnt cover many topics thats y i didnyt perform well in jee.sir i want to start preparing for civil services and gradute frm any collge i m nt intrested in engring but my seniors advice to do b.e wat shud i do b.sc or