You can safely plug it into a 16amp outlet, i.e. the outlet with the larger size socket, as it can handle load upto 4000W. AC uses ~2500-3000W depending upon capacity. The smaller socket, is of 6 amps, that gives us 1500W of load, so you may be able to plug B+D one in that. They are going to supply a plug with the vacuum cleaner, you should plug it in the same socket. If they didnt provide one, then you can buy the 16 amps plug.
Thanks for the info man. The problem is, I have only 2 wall sockets available in the room and both of them are smaller ones. So I thought of using AC socket. On the AC socket, they have mentioned 260V 20A. On the vacuum cleaner amazon page, input voltage is 220V. So I think it should be safe to use, right?
Also, I the plug there are giving has only 2 pins which looks same as AC socket, but I don't know if pins will slide into the socket or not.