Section 5(3)(b) in The Rajasthan Civil Services (Joining Time) Rules, 1981
(b)In the case of a transfer of a Government servant within the same station which does not involve a change of residence from one station to another station, the transfer should involve the change of office building at the same station at a distance exceeding 2 Km for the purpose of admissibility of one day's joining time to join a new post, under clause (a) of this sub- rule. If an officer hands over charge in the forenoon/afternoon he shall be required to take over charge of the new post at the same station in the forenoon of the next working day.