God Is Most Powerful.. Right? but..

Hinduism works on the principle of Trinity.

The word GOD itself is a short-form for

Generator (Brahma who created the universe) and his wife Saraswati (the goddess of Knowledge)

Organizer (Vishnu who looks after the creations) and his consort Lakshmi (goddess of Wealth)

Destroyer (Shiva who destroys the bad elements) and his consort Shakti/Kali/Durga (all are same) - She's the goddess of strength.

Knowledge, Wealth and Power(food, energy etc.) are the basic necessities of life.

Every god and his wife complete each other. (like Shiva and Kali are inseparable from each other)

The remaining gods are either

1. different forms of the above 3 gods (ex: Kali, Durga, Parvati are all the same)

2. Children/descendants of above gods (ex: Ganesh is the son of Shiva)

3. Creations of above gods (ex: god of fire--> agni)

4. Incarnations of above gods (ex: Krishna is an incarnation of Vishnu. So Krishna and Vishnu are one and the same)

In this show,

Guruji worships Shiva (who has many other names like Bholenath, Mahadev, Shambhu, Shankar etc.)

Guruma worships Kali (who is Shiva's wife.)

In reality, Shiva and Kali are one and the same (since hubby-wife are to be considered an inseparable couple)

The hindu religion gives us the freedom to worship any god in whichever form u like. But ultimately it's one of the three gods (or their wives) mentioned above.

In short, yes, God is supposed to be one entity. The all mighty, all powerful. Even in Hinduism, there is a concept of "aadi shakti" which would fit this idea. This is described as something like energy which has conscious and is all powerful. Then three "forms" (Creator, protector and destroyer) emerged from it. I do not think the original idea was for people to worship the forms, it was more to make humans understand - abstract god may not be well understood by common people. Further simplification occurred when specific attributes were associated with specific forms of gods- Notice, I say forms of god, wherein I still consider them to be one. However, in common practice today, most people regard them as different. Because it is easy.

This is just a TV show, with less than logical, and sometimes ideas that contradict themselves. Mass audience is still not at the point where philosophical discussions such as your questions can be addressed.

Having said that, many hindus have their own idea of religion, gods and such. What i said is my point of view. Feel free to hit me up if you want to discuss more :) :)

For second question, yes, Guru ma is stupid. I think if I have to compare her to real life, she would be someone on the darker side of religion/powers you can get if you worship someone. It seems like she doesn't really care for the god, but maybe doing it for something in return -money/fame etc. She has low morality anyway. Why else would you support murderers knowing they are murderers?