Legal Case U/s 138, 141 Against My Previous Company Including Me

I was an employee(Designation - Senior Accountant) in a company. That time on all the purchase orders was signed by myself. Our company issued 3 PDC cheques in Oct-20 to the party but 2 cheques got bounced in Feb-21 & Mar-21. Company paid 1 cheque amount through Net banking in Feb/Mar. The party filed a case u/s 138 & 141 in April-2021 against my previous company including me for both cheques. Liability is more than the both cheques amount. I resigned in December-2020 and joined another company in January-21. They mentioned me as accused No.4. How an employee is responsible for paying company dues or why they are involving me. Two hearings already done but no one present from my previous company and I also not present for hearing. Today I received Summon. What should I have to do in this situation.