Serving Notice Period Where There Is No Clause In Offer Letter

No need to fulfill any notice period. You must say that you have neither issued any offer letter nor appointment letter to me.
Please talk to your new company about said case. Because, they ll require your reliving letter or experience on joing time...
In case you require any legal advice, feel free to contact me...
Warm regards,
Dhaval Tailor
Essar Steel Ltd
09909902052

Check the Employee Handbook and Policy Book, it must be there.
No one describes all the company policies in one page Offer Letter or even in six page appointment letter. Any Offer Letter or Appointment Letter need to be read along with Employee Handbook.