Termination on a day prior to completion of Probation period

Hi, Pls provide solution to my problem. 1. I was given offer letter with appointment for 6- years of service . This letter never had any clause of probation. So I accepted believing on it and resigned my previous job. 2. At the time of joining this new company after getting relieved dully from previous company, an appointment letter was given to accept with sign. This letter contained a probation clause of 6 months. It had a condition that services may be terminated with one day notice. I objected to HR before signing it with a reason of surprise to me as there was no talk throughout selection process and now when I have already got relieved from previous company ,this is a surprise condition. HR told nothing to worry as it is applicable to all of us as a policy. Thereafter I believing on this I signed the appointment letter. 3. Recently just one day before completion of my probation period surprisingly I got a mail that my services have been terminated from the day of completion of probation period with reasons of disrespectful behaviour with client, partners and arrogant n rude behaviour with my fellow staff. However during the probation period I completed all the assignments successfully and also created a transaction where company shall be saving 4 million rupees at least. I was never questioned on any of my working during probation period. There is one more important story. Actually this company is a foreign company and they appointed me thru other company having registered unit in India as both the companies are working under the same group. There is anothe Agent company working for this foreign company in India which helped it in twinning a contract from Indian Govt. This Agent company had taken majority of work under their scope as sub contract from foreign company. I came to know about this fact after my joining as Project Manager and my reporting was to Project Director who was foreigner. Initially I was advised by my company to sit and work from the office of Agent company. At that time the owner of Agent company advised me to always give positive feedback about them to my company. Later they told that they are not willing to introduce me and involve in the liasoning with client due to their business interest. When my project director seen that Agent company is failing in achieving the schedule milestone s of the project then he asked my support to bring one more civil contractor which I brought and who was ready to execute the site work in much less than the rate on which Agent company was doing.Later I broght a a quote in another transaction which was less than by four million rupees as quoted by Agent company. This way Agent company started treating me a threat for them.Soon my reporting authority was changed and sidelined and an existing technical head was made as project head and this chap had considerably more inclination towards Agent company.....space constraint