you should attend hearing date 

You should appear on the next date of hearing and meanwhile, mention your situation and circumstance and request for the exemption from personal appearance before the Hon'ble Court. Submit before the court that your pleader/advocate would be appearing on your behalf.  But in the end, my suggestion is that You should appear there physically because already the Court has already summoned you thrice.

If you have received summons or having concrete information about the hearing date, it would be better that you appear in person before the court and come to know the status of the case in person without relying upon the non responsive advocate

Hello,

1. It would be difficult to advise whether your not attending the court hearing would have any adverse effect on your case. 
2. If it is a criminal case, you may remain absent and will have to appear and take bail on the next date.
3. In the meantime try to contact your lawyer in Kullu.

Yes, he should appear to get his statement recorded in court. If there is difficulty in appearing or travelling then appearance can be put through video conferencing also. You can engage other advocate. 

You are a complainant, you are required to give your evidence. Appear on 15th June and give your evidence, the  defense counsel will take another date for cross examination. Bring to the  notice of Court that you have to travel from Chennai therefore, your cross examination should be completed on next date adjourned. On that next you will be cross examined after that you are not required to appear in Court anymore.

Accident with motor vehicle ?

You have to go once to record your statement in court. Till police itself not come to serve noitce, you may evade your presence in court

It’s better you go and attend the same if no one is attending on your behalf. You can appoint a new advocate if earlier advocate is not attending 

- As per law, it is mandatory to appear before the court after receiving the notice /summons of the court. 

- Further, as your friend is an aggrieved party i.e. complainant in the case , then due to his non-appearance before the court , the case may be dismissed or closed. 

- However, if he is not physically well, then you can inform for the same to the court through I.O. of the case or lawyer, or through a relative . 

Dear client,  

If your friend has received three service notices with the respective hearing dates, it is important to attend the next hearing on 15th June. Failure to attend the hearing may result in adverse consequences for your friend's case, such as a decision being made against him in his absence.

Since you mentioned that you are unable to contact the assigned advocate in Kullu, it may be helpful to try and contact the court directly to find out if the hearing is still scheduled as per the notice. You can also try and find a local advocate in Kullu who can represent your friend at the hearing.

In case your friend is unable to travel to Kullu due to medical reasons or other circumstances, you may consider requesting an adjournment of the hearing. This can be done by filing an application for adjournment with the court and providing appropriate reasons for the request. However, it is important to note that adjournments are granted at the discretion of the court and may not be granted in all cases.

It is important to ensure that your friend's legal rights are protected and that he receives the compensation he is entitled to for the damages suffered in the accident. Therefore, attending the hearing or taking appropriate steps to ensure representation is necessary.