See his work, Het Animisme in den Indischen Archipel (The Hague, 1906), pp.
On the age of Kavya poetry consult especially Buehler, Die indischen Inschriften und das Alter der indischen Kunstpoesie, in Trans.
It was certainly otherwise at the period of the Vedas (vide Die Todtenbestattung im indischen Alterthum.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "indischen" in a variety of sentences. We hope that you will now be able to make sentences using this word.