This article highlights two things:
1. asura - sura role reversal. In Iran, suras were bad guys and asuras were virtuous persons. In India, suras are virtuous persons and asuras are bad guys. According to researchers, Aryans migrated to India, via the Iran route. The reversal of roles have taken place, over centuries.
2. asuras not worshipping Goddess durga, because she slew their ancestor mahishAsura.
ybrems (Observations of this blogger)
* hanuman's mother anjana dEvi's birth place being in gumla, jhArkhand and ravana-installed Shiva temple being located at dEvgarh, jhArkhand, I have many times at these blog posts expressed the feelings that rAvaNa's lanaka was in jharkhand.
* The article of dailypioneer.com linked above, is speaking about asuras opposing and mourning durga pUja. Their disinclination being based on the slaying of their ancestor 'mahishAsura' by 'mahishAsura mardini durga' is quite understandable. (slaying of mahishAsura is an important theme of durga pUja). Here, I wish to add: Even rAvaNa was not a worshipper of Goddess durga (or parvati or any other form of shiva's wife). This was probably because asuras were not sAktEyas (worshippers of mother Goddess Sakti). In Hindu mythology, it is very difficult to trace out an asura, who worshipped female Goddesses.
* I believe that Shiva worshippers (whether phallus-linga worshippers or not) migrated into India from Crete of Mediterranean sea. Vishn - lakme worshippers migrated from Northern Europe's Old Prussia, Latvia and Lithuania. Thus both Shaivas and VaishNavas were Europeans and whites. asuras of jharkhand knowing 'iron' smelting strengthens the view that they were of European origin. Other native tribes of bIhAr, jhArkhand, bengal and Orissa might have been the worshippers of Mother Goddess (durga or numerous other names). asuras might have lost their ancestors mahishasura, ravana (all were whites) in battles with the Mother Goddess Worshippers. VishNu worshippers didn't have to fight Mother Goddess worshippers, presumably because they (vishNu worshippers) did not try to conquer jharkhand. Whether rAma won the battle over rAvaNa or whether durga won the battle over mahishAsra, they only indicate inter-tribal battle victories or colonial-tribal battle victories. There is nothing like "victory of good over evil" etc. We cannot make such attachments simple because, every victor considered himself 'virtuous' and that 'truth (dharma)' was on his side. The poets, artists and balladeers receiving food and money from the victors sang the glories of the ancestors of the conquerors and tarnished the enemies. Ravana, mahishAsura, being the losers might have naturally received the 'mud-slinging'. These things happen even in today's elections. Winner becomes the hero and Mr. Clean. Loser becomes the villain and has to hide himself from public glare for some months.
*Visn-lakme worshippers of Latvia-Lithuania-Old Prussia-Norway-Sweden had 14 mAtE worship. Historians have a great burden to find out how the 14 mothers of North Europe got integrated with the Mother Goddesses worshipped by Indian native tribes. One probable distinction we can make may be in color of Goddesses. Example Goddess kAli's black color. It is not clear whether the North European 14 mAtEs consumed liquor, wore bones, stretched their tongues out etc. Most of them might have been white in color and consumed refined liquor, whereas the native Indian tribal Goddesses took unfermented toddy (palm juice) etc. This integration might have taken place sometime around 4th Century A.D (to) 11th Century A.D. For example, poet kALidAsa's ShyAmala danDakam (starts with mAnikya vINA mupalAlayantIm, madAlasAm etc.) eulogises the Mother Goddess Shyamala (shyAmala = one who is black/blue) combining all the qualities (imported and indigenous).
summary: I reiterate that rAvaNa might have been the ruler of deoghar area, jharkhand, with his capital at bhagalpur. Difficult to trace evidence of his worshipping Goddess durgA or any other of her forms.
I invite the esteemed views of my readers, particularly those from jharkhand and south bIhar.
=====Subject to further editing. =====