Defamation complaint

You should file a police complaint within 24h and keep that copy for further action.

criminal action agains tthe both. 

But How should I prove the truth.

Is there a chance of the other party turning it on with false witnesses (coz., the incident happened near their house, so the witnesses may support them even if it's against the truth).

please advice.

he has befor ecommitting the crime collected witnesses.  You are witnesses. Your broken car is evidence. 

You have subtantially lost the case by now.

By today you have wasted 5 days whereas police makes a promise of reaching within 10 minutes of dialing 100. 

If you had called the police then and there then in that case there would have been breath alayser test (if drunken police would have shown him series of law), his license, his helmet (of both) would have been checked,  insurance and RC of both vehicles would have bene checked, site would have been photographed. In thana they would have begged before you to let them go on payment of cost of damages. His wife would have been charged under section 323, 425.  In case she had used vulgar language (at time seen  in woman to woman  fight if the offending woman is of hooligannature) the section 294 would also have been there.  So the offences are much more serious than mere defamation (non-cognizable and balaile offence) you are talking about. 

His neioghbors may have collected only to hlep him in distress, you cannot beleive all of them to be hooligans and supporting smashing of car like youngster goondas.

Take care, it is you who initally wen to hit him whe he was merely abusing .  It is he and his wife who exceeded right of private defence.  So don'nt expect you to go unscrathced.

Thanks Sudhir for the detailed reply.

Should I face such a  problem next time, I will call 100 immediately.

Thanks...vijay