Case of Absconding, company is asking for Rs 49051 as settlement.

Sir, I received an offer from Tech Mahindra (Bangalore) and joined the organisation in May 2015. But due to some family problems i have to move back to my home location urgently and i have only worked for 2 weeks. And have left the organisation without any intimation assuming it to be Absconding. So since then i never shown Tech Mahindra in my resume. On Tuesday i have received a Notice from Advocate hired by Tech Mahindra and asked my to pay Full and Final settlement amount of Rs 49,051 + 15% interest annually from the due date. And he also mentioned that i have to pay this amount with in the period of 7 days after receiving the notice. If i don't pay then a civil, criminal case with be open against me. So i replied to him on 10/08/17 Thursday to know about the breakup of Rs 49,051. Then on 11/8/2017 Friday i received the mail from Tech mahindra with my FNF settlement slip. Below are the details: Pay components Total Amount(Rs) Salary Earnings:- Unclaimed Flexi 931.00 Leave Encashment 0.88 days 638.00 Advance Variable Pay (60%) 1,604.00 Gross Earnings ____________ 3,173.00 Salary Deductions:- Access Card 1,000.00 Net PAy Validation Arrears 21,783.00 Hold Salary -35,534.00 Notice Period Recovery 90.00 days 64,975.00 Total Deductions __________ 52,224.00 Total Settlement Amount -49,051.00 - Where i didn't understand "Net PAy Validation Arrears" for which i need to ask Tech mahindra about it. For 90 days recovery period, i have checked my appointment letter. Termination of Employment (a) Either party can terminate this employment by serving a notice of 90 days on the other. The Company may at its absolute discretion make a payment representing salary (basic) in lieu of notice of termination. However, for cause like misconduct, gross negligence, willful insubordination or disobedience, misbehavior or non-performance, Tech Mahindra Limited. may terminate your services with immediate notice. (d) Unauthorized absence or absence without permission from duty for a continuous period of 7 working days would make you lose your lien on employment. In such case your employment shall automatically come to an end without any notice of termination. Due to limitation of words cant paste more points. I request you please suggest me best possible solution. I'm also not in the condition to pay this amount. Thanks.