I've done much studying and reading of Sadhu Sundar Singh and I find his Christ followership very inspiring!
He was so conflicted that to be a follower of Christ to the missionaries he encountered was to shave his face and dress in the western style and conform his worship style to that of the western white missionaries, that he came to realize Christ didn't suffer on the cross so that we could all walk around in suits and worship to western hymns and conform to capatilism christianity. No, Jesus Christ was the word from the beginning who created these different cultures and languages and asks each of his peoples to worship him...as they are!
If he had conformed to the missionaries ways, he wouldn't have made such an impact in his area he ministered. He was recognized as a Sadhu "holy man" which is very respected in the Hindu cultures. Without that title, he would not have been welcomed into areas that he continued to travel to.
I would suggest also reading "Peace Child" by Don Richardson and also his "Eternity in there hearts". These are both about how our awesome God has been preparing people groups for hearing his message in a way that is so understandable to them. It's amazing!