What you require ? is it srividya in Agama Shastra or Srividya agamam (Dint understand properly) Please post it properly. Here is srividya upasana tatva in agama shastra AtmAbhinnashivAkAraM chidAnandaghanaM guham | prakAshaM vimalaM shAntaM brahmaNyaM samupAsmahe || vande gurupadadwandwaM avA~Ngmanasagocharam | raktashuklaprabhAmishramatarkyaM traipuraM mahaH || || gaM gaNapataye namaH ||