You have mentioned in your post:
A) 2. Termination of Employment; 2.1, 2.2
Employer and employee can terminate the employment on equal terms. It is not stated salary mentioned is Basic, Gross, CTC.
B) 1. Contractual Bond:” I had signed a commitment bond for 2 year on plane print out offer letter not on bond paper."
"1.1 You will be required to attend special training and courses arranged by the company. You acknowledge that this is necessary for you to acquire the proper skills and expertise to carry out the duties of your employment, in particular, in respect of software development projects for the company, XYZ Technologies and its affiliates.
"As mentioned in 1.1 they have not provided any training or course as I am an experienced candidate and the technology used is open source."
While you are still in employment you can submit gentle representations ( in writing under proper receipt with original seal and signature, which you can even obtain from desk where all post/courier/ of the company are received, followed by email, or you can submit by registered/speed post) to your appointing authority/MD/CEO, and state that since you have not provided with any training or course and you already had proper skills and expertise to carry out the duties of your employment, and you were experienced candidate and the technology used is open source, hence Contractual Bond, is void and should be cancelled.
You shall need lots of patience, persistence, negotiating ability and should remain cool and calm, and amiable. Build and maintain rapport. If you take up another employment you shall need your company, higher ups to obtain your F&F, experience certificate, relieving letter, NOC/NDC, good reference check, etc.
It is almost certain that you shall have to face sessions with your reporting authorities, higher ups, HR if any.
If you have accomplished all tasks, contributed to the company, and if you have received any appreciations, you should have all records.
If you feel that despite your level of expertise, qualification, skill, experience, you have not been awarded adequate salary, increments, perks, rise in salary compared to your colleagues, peers, you should take up the matter, in writing in gentle manner.
It is not clear whether it is stated in your contractual bond that you shall not be given any hike in salary. It shall be appropriate to show all docs and records to elders in the family, experienced and competent well wishers, your lawyer/law firm.
If your colleagues, peers have been awarded batter salary but you have not been, due to contractual bond, you should minute it under acknowledgment, in a gentle manner.
However you must minute the meetings and submit under proper acknowledgment, and build record which you should be able to prove (currently and/or later).
Looking into the trends in the industry, the company may not reply in writing.
However you should be able to gather all facts and records.
Another scenario is that you have sufficient records, data, facts, documents with you, and in case you terminate the employment, in line with terms of termination, and your company decided to take any penultimate action you should be able to defend.