eway bill penalty

penalty of Rs.10,000 or the tax sought to be evaded (whichever is greater).
minimum penalty that is levied for not complying the rules is Rs. 10,000.

Yes as per section 122 CGST act it's 10000/- maximum penalty without E-way bill

As per Section 122 of the CGST Act, 2017 – A taxable person who transports any taxable goods without the cover of specified documents (eWay bill is one of the specified document) would be liable to a penalty of Rs.10,000/- or the tax sought to be evaded whichever is greater.

Any goods not listed in a GST eway bill that is found being transported or stored will be liable to detention or seizure as per the Section 129 of CGST Act, 2017.