Bhai Sahib wrote the following passage about Mohandas Karam Chand Gandhi also known as Mahatma Gandhi:
Original Text: ਜਗਤ ਪ੍ਰਸਿਧ ਪੁਲੀਟੀਕਲ ਮਹਾਤਮਾ ਚਾਹੇ ਕਿਤਨੇ ਵਡੇ ਮਹਾਤਮਾ ਕਿਉਂ ਨਾ ਸਦਾਉਣ ਰਾਮ ਰੰਗਾਂ ਤੋਂ ਸੂਨ ਹੋਣ ਕਰਕੇ ਮੁੜਿ ਮੁੜਿ ਚੁਰਾਸੀ ਦੇ ਗੇੜ ਵਿਚ ਪੈਣਗੇ। ਉਹਨਾਂ ਦਾ ਨਿਸਤਾਰਾ ਭਵਜਲੋਂ ਪਾਰ-ਉਤਾਰਾ ਕਦੇ ਨਹੀਂ ਹੋਵੇਗਾ, ਜਦ ਤਾਈਂ ਸੱਚੇ ਸਤਿਗੁਰੂ ਗੁਰੂ ਨਾਨਕ ਦੀ ਸ਼ਰਨੀ ਪੈ ਕੇ ਗੁਰੂ ਦੁਆਰਿਓਂ (ਗੁਰੂ ਨਾਨਕ ਦੇ ਦੁਆਰਿਓਂ) ਅੰਮ੍ਰਿਤ ਛਕ ਕੇ ਅਤੇ ਗੁਰ-ਦੀਖਿਆ ਗੁਰ-ਮੰਤਰ ਗੁਰਮਤਿ ਨਾਮ ਜਪ ਕੇ ਅੰਮ੍ਰਿਤ-ਰਸ ਪ੍ਰਾਪਤਨੀਆਂ ਅਭਿਆਸ-ਕਮਾਈਆਂ ਨਹੀਂ ਕਰਨਗੇ। (Page 458, Gurmat Karam Philosophy).
Loose Translation: No matter how great Mahatma (holyman), the world famous political Mahatma calls himself, devoid of the divine colours of Raam (God), he will come into the cycle of 8.4 million life-forms, again and again. He will never swim across the world ocean, until and unless he seeks the refuge of the True Satguru - Guru Nanak, and from the house of the Guru (Guru Nanak's house) he drinks the Amrit (Khanda Pahul); and until he chants the Gurmat Naam Gurmantr received from the Guru and gains spiritual wealth this way.
Vichaar: Bhai Sahib has made a very bold statement with respect to the father of Indian nation - Mahatma Gandhi. The whole world considers him to be a great holyman and although he was a very shrewd politician still he did have some excellent qualities but without the true Bhagti done through the true Guru, he will come back in the cycle of 8.4 million life forms. The silver lining for Mahatma Gandhi that I see in Bhai Sahib's above quote is that Bhai Sahib has done Bachan that he will not receive salvation until he comes to the house of Siri Guru Nanak Dev jee. This Bachan of Bhai Sahib opens a possibility that some day in the future Mahatma Gandhi has a chance of salvation by becoming a Sikh of Guru Sahib.
PS: Please refrain from using abusive language against Mahatma Gandhi when commenting under this thread because many people have a lot of devotion for him. The intention of this post is not to hurt anyone's feelings but to illustrate the truth that one can become holy and pure only through Bhagti done by chanting the Gurmat Naam.