1) A lawyer just represents his client and sends notices etc per assertions made by the client.
2) It is not necessary to respond to an Advocate's notice although if you wish to , you may do so. You may also use the time to prepare your case well.
3) If the client apporaches the Court and court finds prima facie merit in the complaint, the Court will issue a summons to you along with the copy of the complaint. It is this Summons you will need to take note of and respond appropriately.
DISCLAIMER : General information and advice provided is without any warranties as to suitability for any use, correctness and application to any specific case. Please always take proper legal counsel . However, if it helped anyone even a little a " thanks" via the " Thank Contributor " button would be appreciated and would encourage me to keep on making efforts :-) . I am also always open to corrections and further learnings from more experienced Seniors here.For DIRECT contact with me / my friends and more law related informations / queries visit http://lawforall.in