On whose advice did Gandhiji spend a year travelling around India in 1915 - 16 ?

After Mahatma Gandhi returned to India from South Africa in January 1915, he sought the guidance of Gopal Krishna Gokhale, whom he regarded as his political mentor. Gokhale advised Gandhi to spend his first year in India travelling across the country to gain a firsthand understanding of the Indian people, their problems, and the socio-political landscape before engaging in active politics. Gokhale famously suggested that Gandhi should keep his "ears open but his mouth shut" during this period. Following this advice, Gandhi travelled extensively, mostly in third-class railway compartments, which helped him connect with the masses and understand the ground reality of British India. The other figures mentioned—Bal Gangadhar Tilak, Lala Lajpat Rai, and B.C. Pal—were prominent leaders of the extremist faction, but they were not Gandhi's primary political advisors at the time of his arrival.