Dear
The crucial clause "In case if you leave the services of company within 18 months you need to pay RS:1,00,000/- towards cost of replacement for comapanyname and for providing On the Job Training to you."
The above appears to be for getting a replacement which is a doubtful case for your Employer.
Anyway take specialist legal advice and and send them a letter explaining your position apart from the un-enforceability of that provision of their appointment letter and get a smooth relief.
With Regards V.Sounder Rajan VS Rajan Associates,
Advocates & Notaries,
No.27, Ist Floor, Singapore Plaza,
No.164, Linghi Chetty Street,
Chennai - 600 001.
E-mail :
Off : 044-42620864, 044-65874684,
Mobile : 98401 42164.