You have posted that;
---"In salary slip they mentioned as 0 working days"
If it is not true then you should put your objection on record, stating it is false, in writing under proper acknowledgment to good offices of appointing authority, MD with a copy to Head-HR.
---"I doubt they will reply as they made adjutsmnt salary"
You already know the answer?
Doubts apart, let them state so in writing!
You can proceed further upon getting a reply.
Silence at your end would be treated as deemed acceptance.
---"I had accident ,had admiited for 2 months'
....................................The ESIC, Employee’s Compensation Act also takes care of it….........and there is a provision to pay salary during sickness in ESIC....................
The group insurance policy obtained by company and in which you might be a member, might have a provision to pay compensation during sickness.
The employee's/Trade Unions unions can help you.
Assuming that you are not eligible the Chairman's office can award you a compensation/ or even full salary during sickness, by its own discretion.