Our Lord had this sobering teaching to the Church:
Matthew 7:13-23
13 ‘Enter through the narrow gate; for the gate is wide and the road is easy* that leads to destruction, and there are many who take it. 14For the gate is narrow and the road is hard that leads to life, and there are few who find it.
A Tree and Its Fruit
15 ‘Beware of false prophets, who come to you in sheep’s clothing but inwardly are ravenous wolves. 16You will know them by their fruits. Are grapes gathered from thorns, or figs from thistles? 17In the same way, every good tree bears good fruit, but the bad tree bears bad fruit. 18A good tree cannot bear bad fruit, nor can a bad tree bear good fruit. 19Every tree that does not bear good fruit is cut down and thrown into the fire. 20Thus you will know them by their fruits.
Concerning Self-Deception
21 ‘Not everyone who says to me, “Lord, Lord”, will enter the kingdom of heaven, but only one who does the will of my Father in heaven. 22On that day many will say to me, “Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many deeds of power in your name?” 23Then I will declare to them, “I never knew you; go away from me, you evildoers.”
But, are the words that were spoken (Possibly out of context, I don’t know ... I’m not Hindi) - in any manner out of line with Christianity?
One way to reach out to non-Christians is to find ‘common ground’. I see nothing in these sentences that reject or denounce Christianity. If the goal is to gather the lost sheep - then reaching out to them in this manner is both smart, as well as wise.
If you opt to condemn them, reject them and criticize them - I do not believe you will attract a lot of followers.