I notified payee about stop payment instructions

I had signed contract in which I had to serve 3 years, If leave before that had to provide 30%CTC. At that time before issuing a offer letter they asked a cheque around 4.2 Lakh on the pretext of training which they never provide any training. After 2 years I started having health issues due to work stress and night shift. I kept continue working. I put resignation and consulted neurologist he pointed out health issues are due to stress depression and night shift I communicate the same to Managers and they gave approval on my release, I smoothly completed handover KT and received acknowledgement for the same. Till 2.6 years my handover of assets and account closing was done on the same day. They demanded huge money in acceptance mail which is unreasonable, So sensing their intentions filed complaint and gave stop payment instructions to the bank and communicated same to the employer. In grudge declared me absconding and terminated on same day. They still had presented cheque, suggs plz