hii sumit 

considering you as general category student with a rank of 25.5k its not possible to get SDMCET college as its quite good college while to know the previous year cut off kindly chek the below link 

https://engineering.careers360.com/colleges/sdm-college-of-engineering-and-technology-dharwad/cutoff

while the same for the NMAM college as well

https://engineering.careers360.com/colleges/nmam-institute-of-technology-karkala-taluk/cutoff

hope this helps

regards