Great idea to read in English. Here are JainKnowledge.com resources that can help you find English translations and where to access or read them:

• All Jain Sutras / Stotras available on JainKnowledge.com: you can explore English translations and related materials here

• Kalpa Sutra in English: reliable English translations and information about reading access are available here

• English translations of Jain Āgamas ( Śvetāmbara and Digambara): general guidance and examples of editions that preserve the original text with translation are discussed here

For purchasing in Mumbai:

• A well-known Mumbai publisher and bookstore that specializes in Jain texts is Hindi Granth Karyalay; they publish and distribute Jain works in English, Hindi, Sanskrit, and other languages. You may check their offerings for English translations of major Jain scriptures.

If you’d like, I can narrow down to specific titles (e.g., Kalpa Sutra, Tattvartha Sutra, Āgamas) and suggest exact JainKnowledge pages with summaries or browsing tips.