I reached Mata Mansa Devi Mandir in Panchkula (Haryana) from Chandigarh railway station via bus.
Rs. 20/- was the bus fare and it took 15 approx. minutes to reach.
Note: There are numerous buses (ac/non-ac) available from I.S.B.T. Sector-17 and Sector-43 for Mata Mansa Devi temple.