Who defeated Alexander the Great?

We are taught in our history textbooks that Alexander won, but the history we study has largely been written by the British the truth is  Alexander did not win any war on the Indian soil, he in fact lost to Porus, 

• Alexander after winning many battles and defeating the Persian king, invaded India and crossed Indus. Here he was joined by Ambhi, the king of Taxila. Ambhi surrendered himself to Alexander. He was enemy of Porus and wished to defeat Porus with the help of Alexander.

• But the truth which is documented in many narratives of the Europeans themselves presents a totally different picture

• concluding that Alexander was defeated by Porus had to make a treaty with him to save his and his soldiers lives

• In the Ethiopic texts, Mr E.A.W. Badge has included an account of “The Life and Exploits of Alexander” where he writes inter alia the following:

“In the battle of Jhelum a large majority of Alexander`s cavalry was killed. Alexander realized that if he were to continue fighting he would be completely ruined. He requested Porus to stop fighting. Porus was true to Indian traditions and did not kill the surrendered enemy. After this both signed treaty, Alexander then helped him in annexing other territories to his kingdom”