Also, Rennell's Canoge is surely Kannauj.  One of the tributaries of the Ganges south of the city seems to be known as the Kali nadi (see e.g., http://www.jnvkannauj.org/history.php ).
Tim

From: <Lubin>, Timothy Lubin <lubint@wlu.edu>
Date: Friday, October 4, 2013 7:07 AM
To: "ashok.aklujkar" <ashok.aklujkar@gmail.com>, Indology List <indology@list.indology.info>
Subject: Re: [INDOLOGY] Pataliputra & Patna

A couple of copies of the 2nd edition of Rennell (1788) are available from Archive:
http://archive.org/search.php?query=creator%3A%22Rennell%2C+James%2C+1742-1830%22

There is a 3rd edition (1793) with an additional map in Google books.

Best,
Tim

Timothy Lubin
Professor of Religion
Washington and Lee University
Lexington, Virginia 24450

http://home.wlu.edu/~lubint
http://wlu.academia.edu/TimothyLubin
http://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=930949