Maile masters sakera ek barsa ko OPT use garen tara kaam ra H1B huna sakne situation chaina ra mero OPT extend pani hundaina. Maile undergraduate garera chai OPT leko thiena. Aba k maile feri undergraduate garera OPT lina paunchu? maile second masters garne chai soch rakheko chaina kina ki maile pheri OPT lina paundina. 

You can get as many OPT as you want as long as you graduate with a degree. Go for another masters. My friend got MBA, used up his OPT and then graduated with MA in psychology.

 Are you sure about getting the second masters? may be your friend did not use the OPT for the masters program. I was wondering whether it has to be higher level? eg: masters to phd not masters to bachelors. I would appreciate if anyone has gone through such situation.

I m sure you can get only one opt per level. One for bachelors, one for masters n one for phd.

thanks all for the reply. can i regress or does it have to be higher level?

My friend is currently on his second OPT.

 Yes legally speaking you can have one OPT per academic lavel but it is not impossible to get second one. Having said that, it has to be justifiable to go for second degree. I have not seen anyone denied but they all graduated with different majors the second time. Also, i do not think it is a good idea to do Bacholars in your case.
Go for second Masters but different field so you can have better odds !! 

thanks Bhakte dai and halo . I will do that I am changing my major but I read a document that explicitly says that I cannot have second OPT for same level of studies.

F-1 students are eligible for up to 12 months of initial full-time OPT for each higher degree level - a year for a Bachelor's, Master's and Doctorate
This does NOT apply if going to a lower degree (i.e. Master's to Bachelor's) or to a similar degree (i.e. Master's to second Master's degree).
Post-Completion OPT years cannot be combined or split.

You will not receive additional OPT time if you complete another degree at the same level (e.g., two master's degrees) or a lower level (e.g., complete a master's degree and then go back to school to complete a second bachelor's degree).

This is what I found in ice.gov page, an F-1 student who has attended an SEVP-certified college, university,conservatory, or seminary on a full-time basis for at least one academic year may be authorized for up to 12 months of OPT per education level.