Nehru called us "brothers" (it was only ever said in Hindi, not in Chinese), then he immediately back stabbed us, by hosting our largest separatist group in 1959, immediately after their failed violent uprising against China.
As if that was not enough, he also attacked us during our worst ever famine in history, the Great leap forward.
What kind of "brother" attacks you when you are dying of starvation? That is a sick mockery of the term brother.
That is a rather silly argument.
Military build up is not proof of an imminent attack.
By that logic, China's military build up in Tibet is a hundred times greater TODAY, than it ever was during the 1960's.
The border infrastructure imbalance is even more in our favor now, meaning we can bring a much greater force of soldiers and equipment to any point along the LAC, in overwhelming numbers and speed. The disparity is so great that the Indian Army has openly complained about it in the media.
Not to mention our military budget, and the fact that we have the world's largest inventory of non-nuclear ballistic missiles in the world, which combined with our thousands of cruise missiles and rocket artillery, can easily target New Delhi (which is only 300 km from the border), and take out all of India's airbases that could provide cover to India's NE.
And given the fact that we have the high ground on the Tibetan plateau, India's ground radars will be facing a sheer mountain wall, meaning that they will not be able to detect missiles or aircraft until they have crossed the plateau.
So, given China's enormous military build up in Tibet today, does that mean China is preparing to attack India?