Hi Prasad,
There is nothing to do if any company gets suspended or de-listed under compulsory de-listing or voluntary de-listing. There are many companies in this list for EG:- BSAL (Bellary Steel & Alloys Limited). Many investors has this shares, even thought the price was @ Re 1, it was trading little frequently. until it was bought by ISPAT ltd once the deal went through BSAL got de-listed from BSE. All the money invested are gone.
The main reason for any company to get suspended is because of NON-COMPLIANCE of listing agreement of the respective exchange/s. One of the reason of Non - Compliance will be of Clause - 49 of listing agreement i.e Corporate governance.
You can find the list of companies in http://www.bseindia.com/corporates/Susp_Comp.aspx?expandable=1