- Vansh Mahajan has participated in XIII Sub-Junior National and Cadet National Fencing Championship held at Kolkata in 2011 wherein he had won silver medal for the State in Sabre event.
- He also took part in XIV Sub-Junior National Fencing Championship at Gwalior in Madhya Pradesh-2012 and also 57th National School Games 2011-12 organised by the School Games Federation of India held at Chandigarh.
- Vansh took his second medal (Bronze) in 58th National School Games 2012-2013 held under the aegis of School Games Federation of India at Jalgaon in Maharashtra.
- He had also participated in First Special Coaching Camp in Fencing discipline organised by J and K State Sports Council at M.A Stadium here from 17th to 27th September, 2011.
- He has also participated in Inter-District Competitions 2011-2012 in Fencing Discipline organised by Department of Youth Services and Sports at University of Jammu.
- Continuing his excellent performance, Vansh got gold medal in the District Championship 2012-13.
- Vansh is also eyeing for State award and Sher-e-Kashmir Sports award likewise his icons Rashid Choudhary and Ujawal Gupta
- Vansh Mahajan secured 18th Rank in Thailand, Fencing Championship.