Methods to serve a notice

Thanks..

Can my lawyer send the notice on her letter head? Will it be treated as her acceptance if she accept the post? Can the matter proceed after that? 

By Letter Head I mean my lawyer would type a legal notice on his law firms letter head and send it to the party through Register Post.

Will this approach be fine? Its taking lot of time to send it through court with the help of processor server. So instead how about typing notice on lawyers letter head and sending thru register post. 

IF the party accepts this register post will this be treated as acceptance and can the case then proceed?

for that you have to take permission from court that you will servce personal notice to the respondent with the court summons notice and even after that is not served to him then you have to take permission through your lawyer to publish in national newspaper and publish

pls check point no 20 at:-

https://www.lawyersclubindia.com/forum/My-wife-left-home-what-to-do--104182.asp#.VYxR2ZzWJkw