The mantra specifically recommended for this Iron Age of Kali is the Hare Krishna Maha-mantra constisting of 16 syllables:
Hare Krishna Hare Krishna
Krishna Krishna Hare Hare
Hare Rama Hare Rama
Rama Rama Hare Hare
'Hare' refers to the spiritual, all-pervading energy of the Supreme Lord; 'Krishna' means 'the Supreme Lord who is all attractive'; and 'Rama' means 'that Supreme Lord who is the source of all pleasure'. This mantra has the potency to liberate one from the material world.
To encourage visitors to chant this Maha-mantra, Vrindavan Chandrodaya Mandir will house the Harinam Mantap. As they pass through the Harinam Mantap, they will chant the Hare Krishna mantra 108 times and focus on having darshan of the Lord with a devotional mood.
The Harinam Mantap will have 108 steps - one step each for every mantra. The power of the mantra lies in attentively hearing it while pronouncing each of the names distinctly. The recorded mantra chant of Srila Prabhupada will be played to guide the visitors. The holy name of Lord Krishna is non-different from the Lord. Therefore, by repeatedly chanting this mantra, one can constantly associate with the Lord and cleanse himself of all impurities.