Websites like Amazon Kindle and Google Play Books occasionally sell the PDF version of Venkateswara Publications for a nominal fee (₹100-₹300 per volume), which is cheaper than the physical copy.
In Venkateswara books, important formulas and key points are often enclosed in blue boxes. These are your rapid-revision notes before the exam.
Check if Venkateswara Publications has launched an official e-book portal or partnered with aggregators like KopyKitab or Saraswati eBooks. Many publishers post sample PDFs (first chapter free) to help students decide.