From I and II we can say that C is second to the left of D, I is sitting second to the right of D, as we know that I and C are not adjacent to D.
From III, IV and IV we can say that B is sitting to the left of I and second left of H, who is to the left of G.
                         OR
B is sitting to the left of D and second left of H, who is to the left of IAlso we can say that A is either to the left of D or C and F is either to right of G or left of G.We can say from the above information E is either to the right of G or left of CThe two possible arrangements are as follows.Case(i):

Case(ii):


B is immediate right of C. i.e. case(i) F is sitting second to the left of E.