Pointwise equidistribution for one parameter diagonalizable group action on homogeneous space

Let $\mathrm{\Gamma }$ be a lattice of a semisimple Lie group $L$. Suppose that one parameter Ad-diagonalizable subgroup $\{g_t\}$ of $L$ acts ergodically on $L\mathrm{/}\mathrm{\Gamma }$ with respect to the probability Haar measure $\mu$. For certain proper subgroup $U$ of the unstable horospherical subgroup of $\{g_t\}$ we show that given $x\in L\mathrm{/}\mathrm{\Gamma }$ for almost every $u\in U$ the trajectory ${g_tux: 0\le t\le T}$isuniformlydistributedwithrespectto$\mu$as$T\to \infty$.