Hindus in India take shower in Ganga Jamuna as a holy ritual to purify themself. What is the religious background for the Ganga Jamuna?

Just as the questions asks, how does Karma work exactly? I've heard tales if your bad, your re-incarnated as a bug or something. I'm sure there is more to it than this and can someone clear it up for me please.

I've heard many uneducated tales of the vedas concept of a heaven & hell, but not in the sense that there is a good & bad place that souls reside. More that planes of existence of higher & lower power/beings that are above & below the earth. Can someone clear this up for me?

I know very less about it that Hindus believe that there are different loks (worlds). For example par lok (heaven) paathal lok(underworld) Bhu lok (Earth) I want to know exactly how many loks(or worlds) are there? and who lives there? I just know that people (us) live on Bhulok. I heard onc...

There are some claims that ancient Hindu scriptures have mentioned about Jesus Christ or Prophet Muhammad. Link 1 Link 2 I would like to know what is the stand of Hindu experts on these claims. Does the Hindu consensus accept that Bhavishya Purana had 'predicted' about Prophet Muhammad?

Some of the western religions have evil spirits like devils and demons. Does the concept or belief in evil spirits occur in Hinduism?

The relationship between Samudra Manthan and alcohol came up in a comment thread to another question, with one commenter stating that alcohol was forbidden in Hinduism because Daanavs drank alcohol and lost the chance at the amrit (nectar of immortality). I tried to follow up on this thread myse...

In Hinduism, is there a concept of evolution? If so, how it it portrayed? I seen a YouTube video that I am unable to find again that says that the Vedic text says that beings evolve from most complex being to the simplest being(backwards from scientific conception), but also states that conscious...

When circumambulating a temple or an idol (i.e. perform pradakshinam), we do so clockwise. Now, it's obvious that we need to have everybody circumambulating in the same direction, or else people would run into each other. But why do we specifically do so in a clockwise direction? Is there a scrip...

I understand there is a caste system on the basis of occupation. What is the reason for having such a classification system? Has the original concept kept the same or it has evolved over time (if at all) ?

The swastik symbol is used in many ceremonies, yagya etc. What is the significance of this? Also what is the correct direction for this? this or it's mirror image?

Tulsi plant have significant role in Hinduism and it's rituals. It is considered as a Holy plant and in front of every Hindu houses there will be a Tulsi plant. Why is it considered as a holy plant? Where is the root of the holy plant in the text?

Hindus prefer to wear red tilak and sandal wood tilak on foreheads. Is there any specific reason behind this?

In Islam and Christianity, it is obligatory for a couple to take a shower to purify themselves (not together in order to keep them away :D of course; just joking). I have never heard of such a thing from any of my Hindu friends. Are there any teachings related to this? I have been reading other ...

Recently, gay rights have been a very hot topic, and some politicians say that they are un-natural and against Hindutva. But how? I mean I don't rember any Veda or religious book saying anything against a third gender. And even the Mahabharata has a transgender character. Is there anything in the...

Tirupati is most commonly associated with the world-renowned Tirumala Venkateshwara Temple. But there is another Vishnu temple in Tirupati, the Govindaraja Swami Temple. (This isn't the only Govindaraja temple; there's also one in Chidambaram.) As I understand it, the story of the temple goes ...

Some Hindus believe that the Buddha is one of the Dasavatara; others replace him with Balarama. Which groups of Hindus believe that the Buddha was one of the avatars? I vaguely remember reading that this is divided roughly along north-south geographic lines, with people living in the north (loo...