Caste system in India

Swami Ram Swarup Ji, Yogacharya
It is an ancient saying, “That to destroy a country destroy its culture.”
So, since a long time, the people, based on the said saying, have been spreading falsehood against our vedic culture including Manusmriti, that Manu has spread caste system. In this connection, I really feel sad that the arrogants, who are against the Indian culture, have got success in ruining our vedic culture by adding false shlokas therein with a malicious aim to further ruin our country by spreading falsehood.
For example- For Mahabharat epic, King Bhoj writes in his book- Sanjeevini that Vyas Muniji wrote 4400 shlokas of Mahabharat to which another 5,600 authentic shlokas were written by the disciples of VyasMuniji. Thus, total number of authentic shlokas is 10,000 only.
On the contrary, King Bhoj states that in the reign of Maharaja Vikramaditya another 20, 000 false shlokas were added by arrogants. He further says that during the reign of his father 25,000 and during half of his life time 30,000 more false shlokas have been added. Regarding this Kashinath Rajvade also writes-
The present Mahabharat is a corrupt and enlarged edition of the ancient Mahabharat. This ancient work has been diluted from time to time with all sorts of additions and has grown in proportion on that account. So is the case with Manusmriti.
We must also not forget the eternal truth that knowledge is gained when it is given by someone. So, as in the previous yugas, the treasure of knowledge was only four Vedas, which emanate directly from God and which are an eternal, unchangeable truth. Indeed according to Yog Shastra sutra 1/7, Vedas are self-proof and to establish the truth of any matter/views etc. the ved mantra is required to be produced as an evidence otherwise matter/views are declared false. So, there was no base of writing except vedas and accordingly after studying Vedas, every Rishi-Muni like Bhagwan Manu, wrote his spiritual books.
So, idea of every Rishi-Muni of writing the Shastras etc. has been from four Vedas only. Here, I would like to quote Yajurved mantra 31/11 wherein description of four varnnas i.e. Brahmin, Kshatriyas, Vaishyas and Shudra has been preached based on karmas and not by birth.
For example- He is only Brahmin, based on karmas, who knows Vedas and after hard practice of Ashtang Yog philosophy, daily performing of Yajyen, agnihotra, controlling senses, being impartial etc., has realised God.
Similarly, he is kshatriya, by his pious deeds who has power in his arms to save poors and country, thirdly, he is Vaishya (Mahajan) who has power in his thigh to deal with his business and distribute all the matters like food grains, clothes etc. equally without storing them, and atlast he who has not studied and has got no knowledge etc. and is ignorant, is shudra by deeds and not by birth. So, varnna can be changed based on deeds. Similarly, Manusmriti shloka 1/31 states that the God made Brahmin, Kshatriya, Vaishya, Shudra comparing the said as mukh(mouth), baahu (arms), jangha (thigh) and paun (feet), based on deeds and not based on birth and the said statement tallies with the above quoted Yajurved mantra 31/11.
In view of the above, in original Manusmriti, there is no mention about caste-system because it doesnot exist in Vedas and original Manusmriti is based on four Vedas.
Infact, when caste-system does not exist in Vedas and every Rishi-Munis including Manu Bhagwan has written his vedic culture based on Vedas only, then how Manu Bhagwan could go against Vedas to promote caste-system?
So, falsehood is occurring only due to lack of study of vedas. Sun rises to destroy the darkness. Similarly, spreading of knowledge of Vedas is like rising of sun which destroys darkness of illusion completely which further spreads international brotherhood by finishing ravages of hatred.