The challenge in the writ petition is against Exts.P6 to P13 assessment orders passed in relation to the petitioners under the Kerala Value Added Tax Act, hereinafter referred to as the KVAT Act. In the writ petition, the grievance of the petitioners is essentially that, there is a dispute with regard to the partnership firm and the identity of the partners during the relevant period and they alone cannot be made liable for the assessment of the firm. Although various contentions are raised in the writ petition with regard to factual aspects as to whether the details with regard to the identity of the partners was intimated to the respondent department, in a counter affidavit filed on behalf of the 2nd respondent, it is stated that a notice proposing an assessment was sent to all partners, including the petitioners herein, at their residential address, and they duly acknowledged the receipt of the proposal sent by registered post. A photo copy of the acknowledgment card, with signature of the 2nd petitioner is also produced as Ext.R2(a). It is stated in the counter affidavit that despite having received notice, the petitioners did not respond to the proposal for completing the assessment and did not avail of the