TDS deducted at 20%

1) Not reflecting in 26AS because , TDS return may not filed by the TDS Deductor .
2) After Deduction of TDS they have to deposit TDS in GOVT account , and issue TDS certificate in form 16A to you , Just check from 16A obtained or not from Deductor.

It neither reflected correctly in 26AS AND AIS

Neither AIS or  26AS.. CLetters written to Companies hve a standard reply generate TDS certificate from Income Tax Website by inputting PAN Number.

But hve hit a brick wall how to go about it 

Since you have not furnished Pan it won't reflect in your 26AS.. please furnish pan and ask the company to update from their part to have it in your account

Thanks everyone for your responses .truly appreciate it 🙏 

It's the DEDUCTORS responsibility to issue form 16A in respect of tax deductions made. the deductor cannot simply wipe of its hand by asking you to download it from traces portal. if the deductor issues form 16A, you can claim TDS with the help of that. since you have not provided PAN, the deduction wouldn't reflect in AIS

Unless the form 16 is given the return can't be filed and credit cant be availed.

Under the new rule, your employer may deduct 20 per cent of your salary as TDS if you don't provide your PAN and Aadhaar details. If you earn Rs 2.5 lakh per annum and have not provided your PAN and Aadhaar details to your employer, you are likely to be in trouble if you fail to act soon.