Image copyright Sharbari Zohra Ahmed Image caption Sharbari Zohra Ahmed was not involved with scripting the episode, but she has been targeted by internet trolls nonetheless

A Bangladeshi American writer with no role in scripting a controversial Quantico plot implicating Indian nationalists in terrorism is the target of vicious attacks - including threats of rape and violence - on social media platforms.

Sharbari Zohra Ahmed was on Quantico's writing team for just the first season and directly involved in scripting only two episodes - one independently and the other as a co-author.

Despite pointing this out repeatedly on her timeline, Hindu nationalists have trolled her relentlessly, many accusing her of being part of an Islamist propaganda against "peace-loving" Hindus.

One comment on Twitter said: "Care to explain your wildest fantasy while you wrote Quantico with Indians being masterminds of an attack? Does this stem from a deep-rooted bias, hate, anti-Hindu, pro-Islam conditioning of your fragile mind?"

Hyper-nationalist TV news anchors first accused the lead actor, Priyanka Chopra, of insulting India while also pointing fingers at a Bangladeshi American with "vested interests".

Ahmed says she hoped that once they realised she had nothing to do with the episode, the fury would die down. But it did not.

"The level of hysterics crescendoed very quickly," she says, adding, "It has grown really vitriolic with threats of rape and violence even toward people supporting me."

Image copyright Sharbari Zohra Ahmed/Twitter

She says the angry voices cast her as the Muslim agent of a "diabolical anti-Indian and anti-Hindu propaganda machine that is deliberately spreading hate through this show".

"All they had to do was search Google or look at the screen credits to find out the facts," she says.

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The episode, The Blood of Romeo, aired on 1 June in season 3, and showed the main character, Alex Parrish (played by Priyanka Chopra), stopping an attempted terror attack.

Though ostensibly planned by Pakistanis ahead of a summit about Kashmir, Chopra's character discovers it is in fact Hindu nationalists trying to frame the Pakistanis.

The strong reaction forced ABC, producers of the crime drama, and later Chopra to tender an apology. The Network also strongly defended Chopra but no such statement was issued for Ahmed.

Image copyright Sharbari Zohra Ahmed/Twitter

Even though she had nothing to do with the scripting, the apologies came as a disappointment for Ahmed, who has previously also written strongly against the rise of radical Islam and raised her voice against atrocities on Hindu minorities in Bangladesh.

"I felt like they (ABC and Chopra) were capitulating to bullies. That's how fascism takes hold," she says.

She vented out her feelings on Twitter after she claimed Chopra's team had blocked her, an allegation that could not be verified independently by the BBC.

Image copyright Getty Images Image caption Priyanka Chopra, one of India's most famous actresses, was forced to apologise for the backlash over the Quantico episode

Hindu-majority India and a predominantly Muslim Pakistan have fought several wars over the disputed territory of Kashmir, and India holds Pakistan responsible for all major terror attacks on its soil.

But in the last few years the country has also witnessed a growing polarisation between Hindus and Muslims, who feel the Hindu nationalist BJP government of Narendra Modi does not speak for them.

Many Hindu nationalists have used social media platforms aggressively to intimidate voices that they feel show the country or Hindus in a poor light.

"It's a misplaced patriotism and nationalism that's now emblematic of a global phenomenon including the United states," says Ahmed.