Jawahar was the first Manchurian candidate (though I doubt Jawahar was indoctrinated to support British, he did that willingly).
Let me share what I have heard of the Nehru family (and I will not go into CT that they were muslims etc)-
Nehru's traditional house in Delhi was burned during 1857 mutiny, it was suspected by the mutineers that he was with the British (you can also find evidence of just the contrary). But hold that thought and go with that the Nehrus (that would be JLN grand father and great grandfather) were in good books of the Britishers.
They shifted to Agra, and Motilal's brother there became a very successful lawyer (I leave it to the judgement of the reader to think that to be a successful lawyer in British court, do you have to be competent and upright or it could be that if you were loyal to them, we have examples for both). Motilal followed his brother's footstep and became a bigger successful lawyer, earned very big. So much that JLN's cloth went to Switzerland for dry cleaning (as India had no such facility). MLN was Congress head for two terms and was part of many agreements where he would support Britishers right to rule India only if they gave this or that liberty (dominion status etc. or commissioning of Indian officers, British anyways did not have so many men to officiate IA and live in India). He was very much opposed to all leaders that wanted outright independence and (this is per official JLN/IG/Romila Thapar approved history) would every now and then sabotage outright independence by joining this or that British led initiative (in name of Ahimsa, or practicality..). MLN had many many british friends and neighbors in Allahabad. Many of these tutored young JLN. JLN in his childhood had more friends that were much more fairer than him ,than who were not fairer (and he was quite fair by Indian standard)
His son, one Jawahar Lal Nehru found a very easy life, being son of one of the richest person, a very successful lawyer and politically well established individual. It is alleged that though JLN was himself a lawyer, he never fought any case (he had enough money, so fighting a case for a living was not an issue).
Due to JLN great talent (that had nothing to do with his father's wealth, or his father being congress head twice, or his friendship with Britishers (or as alleged their agent), he soon found himself heading congress (just like talent of Shri Sonia Maino Gandhi and shri Rahul Gandhi have seen them heading congress). By that time, it looks like India would gain independence (WW1 had sapped Britain power, while later WW2 would completely destroy it), somehow JLN was always found to be at the right place, right time. Sometime leading resolution for independence only later to be compromised to self rule or this or that.
He was very keen to give away 1/3rd of India (with a heavy heart of course, if you were weighing it at that time), the right states (Chittagong - so that NE did not have sea access), J&K so that India would not touch USSR or not intervene in Hyderabad so that it can remain independent and encourage other 500 princely states to remain so or later demand so.
Like his history one can claim that he wanted JK with India, and when India was winning it mysteriously took it to UN (just like he and his dad would advocate full independence and then readily agree to a compromise).
Since JLN's childhood, he had more British friends, companion and acquaintances than he had Indians one. He had read more British literature and knew English better than he knew Indian Literature or any other Indian language. His understanding and appreciation of religion also followed the same pattern, more appreciation of alien faith and ridicule of the native. (The instance of him slapping some very renowned ascetic are quite famous). Yet by some miracle, as per congress pasand history and historian, he was the greatest Indian to have lived, who won us independence and produced daughter, grand kids, great grand kids , and grander after that who are still serving this country!!