Introduction
From 1988 to 1990, for nearly three  years, I was posted in the Rajpura factory of Hindustan Levers as Factory  Accountant.  All managers lived in  Chandigarh. It gave me a chance to work in Punjab, the state of my origin. Till  today, I carry fond memories of summer holidays spent at my maternal  grandparents’ home in Abohar and swimming in the canals there. 
Since I grew up in Maharashtra, I was  keen to experience Punjabi culture and enjoy the food first hand. Our family  retained many aspects of Punjabi culture. The mandir at home had a largish  picture of Guru Nanak. My Ma's grandmothers, on both sides, were Sikh and she  studied medicine at Amritsar Medical College. Like my doctor Nanaji, Ma spoke  Punjabi well and had many Punjabi patients. It was a habit with us to address a  turban-wearing Sikh with a ji,  meaning Sardarji. I remember Ma telling me stories of how there was little  distinction between going to a temple or to a gurudwara. 
At a personal level, I am a great  admirer of Guru Govind Singhji and the Lion of Punjab, Maharaja Ranjit Singh.  During a 1977 visit to the Golden Temple, I spent hours enjoying the peaceful  surroundings. When I was a child, my Dadaji told me about the tradition in many  Punjabi families of making the first son a Sikh.  
Khushwant  Singh wrote, “The roots of Sikhism lie  deep in the Bhakti form of Hinduism. Guru Nanak picked what he felt were its  salient features: belief in one God who is undefinable, unborn, immortal,  omniscient, all-pervading and the epitome of Truth; belief in the institution  of the Guru as the guide in matters spiritual; unity of mankind without  distinction of caste; rejection of idol worship and meaningless ritual;  sanctity of the sangat (congregation) which was expected to break bread  together at the Guru ka Langar; the gentle way of sahaj to approach God while  fulfilling domestic obligations; hymn singing (kirtan); emphasis on work as a  moral obligation. The Adi (first) Granth is essentially a distillation of the  Vedanta in Punjabi, the Dasam (tenth) is a compilation of tales of valour of  Hindu goddesses, some composed by the Guru himself, others by bards of his  court.”1  
Guru  Nanak did not start the Sikh religion as it's now called (his followers were  called Nanak Panthis). He was a reformist of the Hindu religion focusing on  social reform so that one focussed on the core teaching of the Vedas that  Parmatma is the one and only. He sent his son to learn from a Udasi who  belonged to the Nath tradition. Guru Nanak’s words resonate with all Hindus.  The formation of the Khalsa was a response to Mughal oppression. 
My  upbringing, personal thoughts and awareness made me see what unites Sanatan and  Sikh dharma. 
So, in 1988, notwithstanding the  difficult situation in Punjab then, I looked forward to working there. My work  was in Rajpura and I drove 45 km one way from Chandigarh daily. I rarely left  Rajpura to return home before 7 p.m.  
At times, the situation got stressful.  We heard stories about anti-terror operations and were apprehensive about  reading the morning newspaper. 
When I look back and reflect, the  questions that come to mind are: how did things get so bad, who divided Punjab  and set back the state by at least twenty years? Questions like these goaded me  to write this essay. 
Simply put, it is the British who sowed  the seeds for the Khalistan movement by dividing Punjabi society into Hindu and  Sikh. They did this starting the 1860's. Post independence, what started as a  game for political power snowballed into a terror movement, aided by Pakistan  who wanted to do a Bangladesh to India. 
This essay gives a comprehensive view of  key events in Punjab between the 1860s and 1995. It is not my intent to  reignite the divide between Punjabis—Hindus and Sikhs. For me, the two are  bound forever by an unbreakable bond of history and kinship including marriage. 
This piece is based on inputs from three  must-read books on Punjab—Amritsar; Mrs  Gandhi's Last Battle (Mark Tully and Satish Jacob) and A History of Sikhs, Volumes I and II (Khushwant Singh). I have tried to be as factual as possible.  Where possible, facts are interspersed with personal experiences. Errors and  criticism are solely to my account.  
The  e book is divided into four parts. Against each part given its contents and  links. 
 Part 1 covers: A snapshot  of key events in 1699 and then from the 1860s to 1995.
Part 2 covers: A history of  Punjab for the same periods. The birth of Khalsa; why Sikhs joined the Royal  Indian Army in large numbers; how the British sowed the seeds for the  Khalistani Movement; Hindu-Sikh relations; Tat Khalsa Movement; birth of Akali  Dal and different Sikh sects.
  Part 3 covers: Key  political developments between 1948 and 1980, including the beginning of  terrorism in Punjab; emergence of Bhindranwale; Operation Blue Star.
  Part 4 covers: The Sikh  mutiny post Operation Blue Star; the Rajiv-Longowal Accord; Operation Black  Thunder II; peak of killings; crushing of terrorism and Conclusion.
Look forward to your feedback.
Also read The Nanak Our  ‘Establishment’ Historians Don’t Want You To Know About  by Aravindan  N