Full salary not paid after resignation

First, you may send him a strong legal notice and thereafter if there is no development, you shall file a Case for money recovery.

Yes, send him a legal notice if he didn’t pay your salary then file for money suit. You have to simply file a suit for recovery of your dues.

Notice period condition comes under the contract of job which is between employer & employee and both can agree on the terms which are not unresonable as given in Indian Contract Act.

There is no way that he could deduct your special allowance... for Performance allowance was there any fluctuation in the pay slip for performace allowance or it has been constant?

No there is no variables written in the offer letter..or pay slip...

thanks for all ur reponses..

Make a written complaint to the labour commissioner of the Noida.

since you are software engineer, you are workman under the U.P. Industrial Disputes Act because of your nature of job, you performed. As such conditions were not mentioned in your appointment letter, your employer has no right or power to impose the same and  special deduction allowance and performance allowance from your salary is illegal. You can file application under Section 33-C(2) of the Industrial Disputes Act or  under Section 6-H9@0 of the U.p.Industrial disputes Act. But in case, your services are terminated on ground that your performance is not up to the mark, if you are not on probation, same can not be terminated without opportunity and domestic enquiry. In case, you are probationer, they can terminate your employment after the expiry of probation period.  it may be noted in case you have not completed 240 days continuous service in a calender, month your services can be terminated without casting any stigma.