In this paper, we study the Krylov complexity (K) from planar/inflationary patch of de Sitter space using two mode squeezed state formalism in presence an effective field having sound speed c s $c_s$ . From our analysis, obtain explicit behavior and lancoz coefficients ( b n $b_n$ ) with respect to conformal time scale factor Since grow linearly integer n, suggests that universe acts like a cha...