Passage: In 1861, Lahiri was transferred to Ranikhet, in the foothills of the Himalayas. One day, while walking in the hills, he heard a voice calling to him. After climbing further, he met his Guru Mahavatar Babaji, who initiated him into the techniques of Kriya Yoga. Babaji told Lahiri that the rest of his life was to be given to spreading the Kriya message.Soon after, Lahiri Mahasaya returned to Varanasi, where he began initiating sincere seekers into the path of Kriya Yoga. Over time, more and more people flocked to receive the teachings of Kriya from Lahiri. He organized many study groups and gave regular discourses on the Bhagavad Gita at his "Gita Assemblies." He freely gave Kriya initiation to those of every faith, including Hindus, Muslims, and Christians, at a time when caste bigotry was very strong. He encouraged his students to adhere to the tenets of their own faith, adding the Kriya techniques to what they already were practicing.He continued his dual role of accountant and supporter to his family, and a teacher of Kriya Yoga, until 1886, when he was able to retire on a pension. More and more visitors came to see him at this time. He seldom left his sitting room, available to all who sought his darshan. He often exhibited the breathless state of superconscious samādhi.

Question: What was very prominent when Lahiri gave Kriya initiation?
caste bigotry