Let D denote a $1-(n, κ, m)$ design where two distinct blocks have at most one point in common (i.e. D is a partial linear space). Then the block graph $\Gamma(D)$ has the blocks of D as vertices and two vertices are adjacent whenever the blocks intersect.and if D is a transversal design $TD_1(κ, m)$

is $\Gamma(D)$ a strongly regular graph with parameter $(m^2,k*(m-1),k^2-3k+m,k(k-1))$?