Pair them with skirts
Try out some Indo-western fusion by complimenting the blouse with a printed skirt. A high-waisted skirt too could work well.
While pairing pants or skirts with the blouse, ensure the blouse’s length is not excessive.
Even pants can work
If the blouse is short, stitch a border to extend its length and voila, you have a nice, cute crop top! This could match well with wide-legged pants.
Yes, pick those bling blouses and attach long fabrics of the similar texture to their bottom edge. With some additional attachments, you can have an anarkali or a long style kurti for yourself.
Traditional, of course
You can always drape a fancy saree around the old-style blouse or match the blouse with a trendy lehenga and choli.