'उत्तरमेरुर' शिलालेख मुख्य रूप से किस राजवंश से जुड़ा है, जो ग्राम प्रशासन के विस्तृत विवरण के लिए जाना जाता है?

In Ancient Indian Statecraft, Kautilya's 'Rajamandala' theory primarily deals with:

The First Buddhist Council was held at ______.

Which ancient Indian text contains references indicating that population counts or census-like records were maintained in ancient India?