In Kali−yuga, the process of worshiping Krsna is the sacrifice of chanting the holy name: [Lord Caitanya to Svarupa Damodara &Ramananda Raya]: "In this age of Kali, the process of worshiping Krsna is to perform sacrifice by chanting the holy name of the Lord. One who does so is certainly very intelligent, and he attains shelter at the lotus feet of Krsna."
¯Sri Caitanya−caritamrta Antya−lila 20.9
The Yuga−dharma Is Personally Introduced by Lord Krsna in His Incarnation as Lord Caitanya Krsna personally inaugurates the religion of the age−nama−sankirtana−as Lord Caltanya: [Lord Krsna, thinking to Himself]:
"I shall personally inaugurate the religion of the age−nama−sankirtana, the congregational chanting of the holy name. I shall make the world dance in ecstasy, realizing the four mellows of loving devotional service."
¯Sri Caitanya−caritamrta Adi−lila 3.19
The Kali−yuga dharma, chanting the holy name, is introduced by Lord Caitanya: [Karabhajana Rsi to Maharaja Nimi]:
"Accompanied by His personal devotees, Lord Krsna, assuming a golden color, introduces the hari−nama−sankirtana, the chanting of the Hare Krsna mantra, in the age of Kali. By this process, He delivers love for Krsna to the general populace. Lord Krsna, the son of Nanda Maharaja, personally introduces the occupational duty of the age of Kali. He personally chants and dances in ecstatic love, and thus the entire world chants congregationally."
¯Sri Caitanya−caritamrta Madhya−lila 20.340−41