In Mahabharat, Guru Dronacharya was accused of taking away the “Thumb” from Eklavya so that Arjun could become the best archerer of the world . However , during those times of dwapar yuga there were division based of action i.e. Brahmin were those who had knowledge of scriptures similarly Kshatriya were those who had knowledge of weapon so they could fight war and save there kingdom. Eklavya although had learnt the archery on his own by keeping guru drona’s statue infront of him , his intensions were pure however , once Guru drona has seen an arrow coming towards a dog and it killed that dog . Guru Dronacharya realised that weapon if get in hands of someone who is not Kshatriya would cause harm to other beings on earth. HENCE WHEN EKLAVYA ASKED GURU DRONACHARYA…” WHAT SHOULD I OFFER YOU IN DAKSHINA, GURUDEV? HE REPLIED “GIVE ME YOUR RIGHT HANDS THUMB…!!”
Moral of the story is do not judge a Guru… as the view point with which a Guru see, we cannot even think of seeing situations and circumstances from that angle…!!
Really, as Drona was actually a cheater in the guise of a teacher, who violated the great rule of examinership, by acting as examiner even in the situation where one of the examinees was none other than his own son, Ashwatthama, whereas the olden day scriptures term one’s children as his/her nearest of all relatives and it was considered a major sin for him/her to examine them under any circumstances.
Dronacharya was a great teacher but in the influence of moh for his son he ignored all his sins …. during dropadi disrobing when ashwathama was abusing her , dronacharya cursed him as well , since dropadi was a daughter of drona best friend …