Need legal advice regarding employment law in india

Hi......... I am working in autonomous body under Ministry of HRD, India and my appointment letter contain the follwoing statement 

"You will be initially on probation for a period of two year from the date of your joining which may further be extended at the discretion of the competent authority. Failure to complete the period of probation to the satisfaction of the competent authority will render you liable to discharge from service. Further during the period of probation your service can be dispensed with by Samiti without assigning any reasons. While on probation, you will be required to give one month’s notice of resignation in case you leave the Samiti"

I would like know the answer of the following questions.

1. If the Samiti neither issued the extension letter after two year of joining nor the confirmation letter after two year of joining then the probation will be treated as deemed confirmed ?

2. After continued service of two year ( from the date of joining) can smiti discharge me from service or can extended my probation period.

3. upto how may year, probation period can be extend after continued service of two year ( from the date of joining) 

Thaanks

You may enagage the services of an able labor Law Consultant.