Never heard any pastors claim anything evil about Hinduism and it’s doubtful many do. The ones that may are obviously not reputable and you should withdraw your membership.
As far as connections between the Judaic faiths and those in the subcontinent, it’s difficult to state.
There are legends in India and Nepal that Christ visited the region in trade missions between the ages of 12 and 30. Some are written in Sanskrit but how these accounts are verifiable I couldn’t imagine. This wouldn’t be exactly a Hindu connection as much as it would be a Buddhist connection, but it might be a start for your idea. There are several books on the topic.