Hello,

1) If you are not getting the acknowledgement to the resignation mailed do email the complaint and even if you don't receive a reply it will be considered resignation and you have a digital proof.

2) You can issue a legal notice to the employer demanding prompt payment of the salary arrears.

3) If there is no specific mention about whether it is basic or gross salary it is the basic salary that can be deducted in lieu of notice.

4) Demand relieving letter from the employer in the notice and be prepared to settle all arrears in lieu of of notice if you resigned without notice.

5) Your being one of the prime witnesses in a case of fraud committed by your reporting officer should not affect your exit procedure.

Hi sir/madam, you have to give one representation to your company to accept the resignation and issued a relieving letter alongwith your pending salary. You can draw a last month salary first. If not mentioned the pay the basic salary in lieu of notice period in the appointment letter, you do not pay. You have to request new company for the same which will produce after some time. You don't worry about the case it will not affect on you, but you have to appear before court or police whenever they called.