 Harrison flew to Bombay in January 1968 to work on the Wonderwall Music soundtrack , expecting the rest of the group to follow shortly . When they were delayed he flew back to London , where the group spent a week in the studio . Before leaving for India , the band recorded the instrumental tracks for " Across the Universe " , whose refrain , " Jai Guru Deva " , was a standard greeting within the Maharishi 's Spiritual Regeneration Movement . Also in January , the Maharishi , Mia Farrow , Prudence Farrow and their brother , flew from the US to London and on to India . 
