Feb 10 11:17:34 www named[478]: zone transfer (AXFR) of "somedomain.co.in" (IN) to [202.138.124.46].1064

not a problem exactly but i get these under the Unusual System Events sent to me by logcheck quite often

wat i can think of is that in india to register a co.in domain the domain must be alive before registering it and we have to go through a long procedure for registering a co.in domain . what i can gather is that either the root authority in india maintaines a database so they do the zone transfer of every co.in domain or some other reason that i dont know is causing this event in my logs??

has anybody got a clue as to what does this means??