Dear Friend
As far as my knowledge is concerned,the salary variance in between above two does not make any difference. Probationer means a person provisionally selected to fill up the regular post for specific period. So if performance of such probationer is found satisfactory, his service could be confirmed on regular rolls or else his service should be discharged at the expiry of fixed period of probation. But, the salary structure, other benefits for probationers should also be on par with regular employees of the company.
However, this policy may vary from company to company and state to state depending upon their recruitment policy. Even the probationer should be paid PF, ESI, Bonus, Leaves etc
Regards